Ask HN: Who is hiring? (September 2025)

Bluesky Social | Multiple positions | Remote (US-based)

We're hiring ML Engineers, ML Ops, Data Scientists, and DevRels. Golang and python for the ML roles; golang and typescript for devrel.

https://bsky.social/about/join

ClimateFriendly | Data Engineer | Remote (Australia)

About: ClimateFriendly provides services to support carbon farming and nature-positive projects with significant coverage within Australia.

Role: We are looking for a data engineer with 3+ years of experience who can work with geospatial data. The team is currently migrating our traditional geospatial workflows into data pipelines using dbt and pySpark.

Technology: python, postgres, pyspark, dask, dbt, gdal

Website: https://www.climatefriendly.com Email: recruitment@climatefriendly.com

Zed Industries | North America, South America, Europe REMOTE | https://zed.dev/ Zed is a company for developers, by developers. All 3 of our founders have spent years in the trenches writing software and still do it almost every single day. We know the only way to build the world's best code editor is by equipping every single member of the team to do the best work of their career.

We've raised $42M to support our ultimate vision, a new way to collaborate on software, where conversations about code remain connected to the code itself, instead of being tied to aging snapshots or scattered across different tools. The first step was creating a high-quality editor to serve as the user interface. Now this new investment lets us expand to tackle the next phase of our plan. We're developing a new kind of operation-based version control that incrementally tracks the evolution of your code with edit-level granularity, and we're integrating it into Zed to make collaboration, both with agents and teammates, a first-class part of the coding experience.

Backend Rust Engineer - https://zed.dev/jobs/backend-engineer

Rust Engineer - https://zed.dev/jobs/rust-engineer

AI Rust Engineer - https://zed.dev/jobs/ai-engineer

Linux Desktop Rust Engineer - https://zed.dev/jobs/linux

Open Source Engineer - https://zed.dev/jobs/open-source-engineer

SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more.

Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers. We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.

We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Apply at: https://serpapi.com/careers

Come work with me @ AllTrails and help lead our full-stack, frontend, backend, and mobile teams.

Role: Director of Engineering — AllTrails (San Francisco / Remote)

About Us: AllTrails is the most trusted platform for outdoor exploration, helping millions of people discover and enjoy trails every day. We’re consistently ranked among the top Health & Fitness apps and were named Apple’s App of the Year in 2023.

Role Overview: You’ll lead multiple engineering teams across the stack, set technical strategy, and work closely with product and design to deliver a high-quality experience for our global community.

What We’re Looking For: • 10+ years of software engineering experience, with 5+ years in engineering leadership • Experience managing multi-disciplinary teams (frontend, backend, mobile) • Strength in technical architecture, team development, and cross-functional collaboration

Compensation & Benefits: • Competitive salary, equity, comprehensive benefits, unlimited PTO, monthly “Trail Days,” and a collaborative, mission-driven culture.

BillionToOne (YC S17) | Menlo Park, CA; on-site or hybrid (US only) | Full-time BillionToOne is ranked at the top 5% of Y Combinator companies with close to $400M in funding. In June 2024, we closed a $130M Series D resulting in a company valuation of over $1 billion. This funding has come from prestigious global institutional investors, including Hummingbird, Adams Street Partners, Neuberger Berman, Baillie Gifford, and Premji Invest. We have developed a DNA molecular counter that increases cfDNA diagnostic resolution by over 1,000x. Our first product, Unity, is the first and only non-invasive prenatal test that can directly screen an unborn baby and assess its risk for: common and severe recessive gene disorders; chromosomal abnormalities; fetal sex; and fetal antigens from a single tube of blood from the pregnant mother. This greatly improves the quality of care and is on its path to becoming the next standard-of-care.

Our software stack includes Python/Django, React/Typescript, Terraform, AWS, and many other standard tools. We're a small, but nimble software team that prioritizes rapid iteration and continuous feedback to evolve our product. As a biotech company, we inherently need to always work cross functionally. If you enjoy this style of work, please reach out!

We're hiring software engineers, bioinformatics engineers, and many other roles. You can email me directly at kwu@billiontoone.com with your resume or apply through the links below.

- Senior Software Engineer, Frontend: https://job-boards.greenhouse.io/billiontoone/jobs/436548500...

- Bioinformatics Associate, Prenatal: https://job-boards.greenhouse.io/billiontoone/jobs/434501600...

You can view all open roles on our careers page: https://billiontoone.com/careers/open-positions/.

Klara Inc. | OpenZFS Developer | Full-time (Contractor) | Remote | https://klarasystems.com/careers/openzfs-developer/

Klara provides open source development services with a focus on ZFS, FreeBSD, and Arm. Our mission is to advance technology through community-driven development while maintaining the ethics and creativity of open source. We help customers standardize and accelerate platforms built on ZFS by combining internal expertise with active participation in the community.

We are excited to share that we are looking to expand our OpenZFS team with an additional full-time Developer.

Our ZFS developer team works directly on OpenZFS for customers and with upstream to add features, investigating performance issues, and resolve complex bugs. Recently our team has upstreamed Fast Dedup, critical fixes for ZFS native encryption, improvements to gang block allocation, and has even more out for review (the new AnyRAID feature).

The ideal candidate will have experience working with ZFS or other Open Source projects in the kernel.

If you are interested in joining our team please contact us at zfs-hire@klarasystems.com or apply through the form here: https://klarasystems.com/careers/openzfs-developer/

Brilliant.org | Software Engineers & Designers | Remote (North America), SF, NYC | Full-time | $170k — $235k | https://brilliant.org

Brilliant is building world-class interactive learning experiences that combine challenging problems, compelling narratives, and delightful visual storytelling.

We're hiring engineers and designers to help craft the next generation of interactive learning and change how the world learns.

Engineers at Brilliant think about both "building the right thing" AND "building the thing right" while pursuing high standards of excellence for ourselves, our product, and our codebase.

Our designers craft interaction patterns that make hard math, science, and computer science concepts feel approachable, delightful, and addictively learnable.

If you're energized by the prospect of doing the best work of your career and changing how the world learns alongside the most talented peers you've ever worked with, you can learn more and apply here: https://brilliant.org/careers.

Pocketflows | Founding Engineer | San Francisco, CA | In-person | $170k-225k + equity | pocketflows.com

At Pocketflows, we’re on a mission to help Main Street SMBs grow. We build marketing and communication APIs that embed inside the vertical SaaS platforms that businesses like salons, fitness studios, and restaurants already use to run their operations.

As a founding engineer, you'll be launching new marketing products in addition to our existing email, SMS, and review platform.

Our values blend ambition with kindness and empathy.

Stack: Ruby on Rails, React + TypeScript, TailwindCSS, Postgres, Redis

Interested? Email us at team@pocketflows.com with your resume/LinkedIn/GitHub, a note on why you'd like to join, and an answer to this riddle:

"I'm thinking of a secret number hidden on pocketflows.com. I won't console you if you can't figure it out"

Stream | Multiple Positions | Amsterdam (NL), Skopje (Macedonia) | Boulder, CO (US) | Toronto (Canada)) | Remote possible | Full Time | Visa Sponsorship

We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers.

If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics: https://tinyurl.com/2u5x9f9w

We’re also hiring for:

* Staff Python Engineer – Open Source Video/Voice AI Library

* Senior React Native SDK Engineer

* Staff Product Designer

* WebRTC SFU Engineer

* Director of Information Security

At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis.

Why Join Stream?

* High scale/ difficult engineering, we have customers using our products with millions of users

* Default alive. Startup growth opportunity with healthy revenue

* All managers are hands-on and capable engineers

* Edge network of servers around the world

* Great opportunity to learn and grow

Remote: our roles are primarily NL, US, or CA-based (hybrid), but exemptions for remote work within the EU may apply to specific cases.

Visa Sponsorship: Available for the Netherlands

Apply here: https://jobs.ashbyhq.com/stream?utm_source=5rrpvObp3r

Loman AI | Founding Engineer | Austin, TX | Hybrid | Full-Time | $175k - 225k + equity | https://loman.ai

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We are building the best-in-class phone AI for restaurants, enabling autonomous agents to handle orders, reservations, and customer inquiries. As a founding engineer, you’ll shape our core product while working directly with cutting-edge LLMs, developing third-party integrations, and designing scalable APIs.

Unfortunately, we cannot offer visa sponsorship.

Stack: nodejs, typescript, postgres, fastify, docker, redis, react

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Apply at jansen@loman.ai

Comulate | Senior Engineer (3+ YoE) | ONSITE in San Francisco, CA

We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (~ 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar.

- Product has caused customers to literally cry tears of joy

- Experienced eng team from Airbnb / Brex / LiveRamp

- Stack: TS, Postgres, React, GraphQL, and Next.js

Apply here: https://comulate.com/careers

MONUMENTAL | https://www.monumental.co/ | Amsterdam, The Netherlands | Full Time | Onsite

We make robots that autonomously construct buildings. We are currently developing and manufacturing our autonomous bricklaying system in the beautiful centre of Amsterdam. And our robots are already earning real revenue operating on construction sites all over the Netherlands.

We're looking for experienced FULL-STACK ENGINEERS who can help us solve problems like:

- Data sync and analytics queries across a fleet of robots (that can be offline for hours at a time)

- Rapid deployment and iteration of experimental software changes across firmware, control software and UI

- Modelling buildings in code and finding the right UI for operators to edit them

Check out the progress we've already made on Atrium, our operating system for robotics: https://www.monumental.co/atrium

We're rapidly scaling up operations and we need experienced, generalist engineers who can build the systems that manage all of that complexity. If you think that 'full-stack' could reasonably mean debugging firmware, mixing buckets of mortar _and_ writing React components, we are looking for you. Robotics experience not required!

https://www.monumental.co/jobs

Common Prefix | Software Engineers / Auditors | Greece | Remote | Full-time

Common Prefix is a science-first blockchain consulting company. Our vision is to make blockchains usable for mainstream users and everyday people – paying at the supermarket, remittances, moving money across borders, saving, investing – and solving the real problems of usability, scalability, and interoperability that come with it. We're a 30-person team, half scientists (cryptographer PhDs, post-docs, and professors) from renowned universities, half engineers with long web2 experience. A lot of our field is broken and we're trying to make a small contribution in fixing it, by introducing provable security and proper engineering practices across the board.

What we're looking for:

Software engineers who can solve problems, are smart, get things done, and enjoy working on the bleeding edge, learning about cryptography, and working from first-principles.

Auditors who can write and read code, especially low-level cryptographic implementation code (zero knowledge verifiers, signature schemes, etc), consensus (PoW, PoS), or smart contracts (everything DeFi).

Tech stack: Doesn't matter, we'll teach you. But we work mostly with Rust.

Open roles:

* Software Engineer, https://commonprefix.notion.site/sw-folk

* Auditor, https://commonprefix.notion.site/auditing-folk

We offer:

- $80,000–$160,000 / year cash - Local from Athens, Greece, or remote, preferably in Europe - Conference participation in exciting scientific and engineering venues, 2-3 times per year - The opportunity to work and learn from world-class scientists from major universities in the field of blockchains, cryptography, and consensus

If you're interested in joining our team, please reach out to careers<at>commonprefix<dot>com with the subject line "HN: <Job Title>".

Dash0 | Multiple roles | FULLY REMOTE | Full-time | Salary + equity

Dash0 is a fast-growing, venture-backed startup on a mission to make observability radically easier for every developer.

We fully embrace OpenTelemetry, Prometheus, and open standards, and our “welcome present” to the OpenTelemetry community, OTelBin, a free tool for editing, visualization and validation of OpenTelemetry collector configurations, is being extremely well received by the community.

We’re currently hiring in multiple roles across engineering, design, and product:

* Senior Product Engineer – Backend (Remote EU)

* Senior Product Engineer – Kubernetes Operator (Remote EU)

* Senior Product Designer – Observability (Remote EU)

* Senior Technical Writer (Remote)

Apply here: https://careers.dash0.com/

Connie Health | https://www.conniehealth.com/ | Multiple senior engineering roles | Hybrid (Boston, MA) | Full-time

Connie Health is a fast-growing startup on a mission to empower older Americans to make confident, worry-free healthcare decisions. Backed by leading investors such as Khosla Ventures and Pitango, we are building technology to transform the trillion dollar Medicare insurance industry, impacting the lives of 67 million people in the US. You will work at the intersection of the latest in applied AI/ML, software engineering, product, and infrastructure to build our best-in-class Medicare navigation and sales platform.

We are looking to fill multiple positions on our rapidly growing engineering team, based out of Boston, MA:

Lead AI/ML Engineer | $152,000 - $182,000 + equity

Responsibilities: Player-coach role, leading a small team of AI/ML and software engineers to build our top-of-funnel systems. Tech Stack: Python, "traditional" AI/ML model building tools (scikit-learn, PyTorch, XGBoost), LLMs, AWS, Aurora/Postgres, Redshift

Senior Backend Engineer | $130,000 - $156,000 + equity

Responsibilities: Build the core backend systems that power our top-of-funnel, such as tracking leads through various channels, integrating with affiliate partner marketplaces, working with AI/ML engineers to build our lead bidding models, dynamically mapping leads to agents, and AI-based lead pre-qualification. Tech Stack: TypeScript + NestJS, Postgres, AWS, Docker + Kubernetes

I am Huan, CTO at Connie Health. If you are interested, please feel free reach out to me directly at with your resume: huan.lai (at) conniehealth.com !

Digital Onboarding | Senior Full-stack Engineer | REMOTE (US based) | Full time

Digital Onboarding is a marketing automation platform that helps banks and credit unions modernize their onboarding process and develop mutually beneficial, profitable relationships with their customers and members.

Stack: Elixir + Phoenix, React, Postgres

https://digitalonboarding.applytojob.com/apply/EZmYDBYg7A/Sr...

Spacelift | Remote (Europe) | Full-time | Senior Software Engineer | $80k-$110k+ (can go higher)

We're a VC-funded startup (recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible.

On the backend we're using 100% Go with AWS primitives. We're looking for backend developers who like doing DevOps'y stuff sometimes (because in a way it's the spirit of our company), or have experience with the cloud native ecosystem. Ideally you'd have experience working with an IaC tool, i.e. Terraform, Pulumi, Ansible, CloudFormation, Kubernetes, or SaltStack.

Overall we have a deeply technical product, trying to build something customers love to use, and have a lot of happy and satisfied customers. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours.

If that sounds like fun to you, please apply at https://careers.spacelift.io/jobs/3006934-software-engineer-...

You can find out more about the product we're building at https://spacelift.io and also see our engineering blog for a few technical blog posts of ours: https://spacelift.io/blog/engineering

Additionally, we're hiring for a new product we're building, Flows[0]. Mostly the same requirements and tech stack, without the devops bits. If you'd like to apply specifically for that, just mention "new product" in the cover letter field.

[0]: https://events.spacelift.io/devops-next

RentSpree | $185k-265k | Hybrid 2x/week | Seattle | Full-Stack / Frontend | Full-time

RentSpree is a series B startup simplifying every step of the rental process—from applications and tenant screening to payments and lease management. Our mission is to create a seamless, transparent experience that saves time, boosts earnings, and builds trust between agents, landlords, and renters.

I'm the hiring manager for most of these roles. Come help us build greenfield products for agents and for our embedded finance platform for rental property owners.

Staff Software Engineer, $200k-220k base, https://ats.rippling.com/rentspree/jobs/4ae81c52-a5f0-4096-8...

Senior Software Engineer (Frontend/full-stack), $185k-205k base https://ats.rippling.com/rentspree/jobs/1051b7fc-6e82-4d8b-b...

Senior Engineering Manager, 230k-265k base, https://ats.rippling.com/rentspree/jobs/970fea74-c6b5-485a-9...

We're in downtown Seattle and are typically in the office twice a week, and still flexible on top of that. We typically use node, TypeScript, React, Mongo, and Kotlin.

Layer Health | https://www.layerhealth.com/ Our team/engineers are incredible! Take a look at their backgrounds: https://www.linkedin.com/company/layerhealth/people/ Work Location: HYBRID in Boston or NYC (downtown) Headcount: ~35 and growing (~2/month)

Stack:React / Typescript / Python / GCP

Open Roles (all roles require a MINIMUM of 6 years of work experience) * Data Infrastructure Engineer * ML Infrastructure (Staff+) Engineer (open to backend platform engineers who want to get into ML) * Senior Data Scientist (must have healthcare/patient data experience) * ML Engineer 3-5 years experience * Research Scientist (PhD's) * Head of Product * Data Engineer with HL7 or FHIR / healthcare data experience

We Offer: * competitive base salary + equity + great health/medical benefits * unlimited PTO * collaborative engineering-first culture, in office 2-3 days per week in downtown Boston and downtown NYC offices.

Layer Health was founded in 2023 by leading machine learning researchers from MIT and Harvard Medical School. We are building an AI layer that can accurately and scalably synthesize information from medical records, with the mission to reduce friction everywhere in healthcare. Our LLM-powered platform is solving chart review once and for all, across use cases. For health systems, our first product dramatically accelerates clinical registry abstraction in areas ranging from surgery and cardiology, to oncology. Our long term vision is for our AI layer to safely transform patient care and minimize unnecessary heartbreak. Layer Health’s diverse founding team brings expertise across machine learning, UI/UX, large language models, and medicine.

Email me at mike.hauschild@layerhealth.com for more info!

Tandem Health | Senior/Staff Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and already have >2000 organizations using our product.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We just raised a $50M Series A and are now expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure. We're scaling rapidly in terms of # of users and are especially keen to talk to seasoned backend, data and infrastructure engineers.

Even if we don’t have a role out for your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://www.tandemhealth.ai/recruitment

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions

Monad Foundation | https://www.monad.foundation/ | Remote | $225M Series A Funded

We are actively hiring Engineers to build software and facilitate the adoption of the Monad blockchain. Key roles include: 1. Senior Protocol Engineer 2. Full Stack Engineers 3. Devrel Relations Engineers

The full list of roles is here: https://jobs.ashbyhq.com/monad.foundation?utm_source=jGLVJ5Y...

Count | Senior Software Engineer | REMOTE within UK/Europe | Full-time | https://count.co | £100-140k + Equity

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business.

We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space.

For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework.

Example projects: leveraging agentic workflows in data exploration, accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, developing serverless frameworks for executing database queries at high concurrency.

Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

For more details and to apply: https://jobs.ashbyhq.com/count

Great Question | Director of Engineering | Full time, Remote (USA/Canada)

Great Question is a unified customer research platform used and loved by teams at companies like Amazon, Canva & Brex. Our platform makes it easy for anyone to recruit research participants, schedule customer interviews, and share what you learn with your team all in one place.

We're third-time founders, backed by Y Combinator, building a company for the long-term, with a great team across the board, and shipping at a rapid yet sustainable pace.

We use Ruby on Rails, React, Postgres. We run on AWS.

We're looking for our first non-founder engineering leader to help us keep the trains running on time.

We've built an awesome team + culture at the company, high candor + EQ environment and we ship. We also welcome applicants who have previously run their own startups, with a bunch ex-founders on the team from the likes of Respondent and Indiegogo.

Check out our careers page here: https://greatquestion.co/about/careers Or email me: ned@greatquestion.co

Peregrine Technologies | Senior Software Engineers | SF / NYC / DC - Hybrid | Full-time | $130,000 - $250,000

Join our founding engineering team. Peregrine helps critical institutions make better decisions and improve operations by unlocking the value of their data.

[Leadership] Engineering Manager (SF) https://grnh.se/s7yxefzs5us

[Leadership] Engineering Manager, AI (SF) https://grnh.se/0w7ot24o5us

Senior Software Engineer, AI (SF, NYC, DC) https://grnh.se/yl9kuqrg5us

Senior Software Engineer (SF, NYC, DC) https://grnh.se/gwf63pot5us

Senior Infrastructure Engineer (SF, NYC, DC) https://grnh.se/vvkanme45us (UK) https://grnh.se/6c1kjk525us

Senior Network Engineer https://grnh.se/xln6w1hc5us

Senior Product Designer (SF / NYC) https://grnh.se/s96svypy5us

Design Engineer (SF) https://grnh.se/z8ev1cgu5us

Findigs | Full-time | NYC | Hybrid 3x/week in office

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes TypeScript, Python, Node.js, React, and scalable cloud infrastructure. We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open role:

Senior Software Engineer ($180k - $210k) —> Apply here (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Oneleet (YC S22) | Multiple Roles | US & NATO Countries | Remote | Full-time

Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Device Monitoring, and Compliance Platform. We are growing at an unprecedented pace and working on some very exciting projects.

What we're looking for:

Strong problem solvers who can work independently in a remote environment - Security-minded professionals passionate about building robust, scalable systems - Comfortable working during Eastern Time

Tech stack: Go, TypeScript, React, Kubernetes

Open roles:

* Software Engineer, Backend

* Software Engineer, Cloud Security Posture Management

* Application Software Engineer, Endpoint Security

* Security Program Manager (EU Timezone)

* Technical Sales (must have background in Computer Science or Cybersecurity)

* Invoicing Coordinator

We offer:

- Competitive salary - Equity in a fast growing cybersecurity startup - 100% remote work - Company offsites every quarter (past offsites have been in The Netherlands and Italy)

If you're interested in joining our team, please reach out to samuel<at>oneleet<dot>com with the subject line "HN: <Job Title>".

Alternatively, you can also apply at https://www.ycombinator.com/companies/oneleet/jobs

Privacy-focused AI Project | Founding Engineer | Remote - Europe (UTC-1 to UTC+3) | Full-time | Base salary + Up to 4% equity

We are building a truly private, open-source LLM gateway to address privacy problems around using LLMs. When we interact with AI-based services, we face the fundamental tension between utility and privacy. Current solutions to this problem are inadequate, so we are ready to build what we couldn't find.

Who are we? A well-funded, bootstrapped venture by the founders of IVPN - a VPN service highly regarded by privacy advocates and analysts, in operation since 2009.

We are looking for a Founding Engineer (based in Europe) to architect and build an MVP from the ground up. This is a role for a senior builder with:

- Strong security/infosec background, track record in privacy-first solutions

- At least 8 years of professional experience

- Deep expertise across the stack (e.g., Go/Rust for backend, React/Vue for frontend)

- Infrastructure automation mindset

What you can expect:

- Founder-funded, sovereign startup approach = no VC involvement and exit pressure

- Small, dedicated, 100% remote team that prefers pragmatism and maximum autonomy.

- Complete technical ownership, responsible for building a system designed for high availability and verifiable privacy that will reach 1M+ users.

- Sole focus on engineering - zero distractions. Founders own strategy, functional requirements, design, communications, legal and all other business related decision and execution.

- Strong base salary and a significant, foundational equity stake (up to 4%).

If you're a self-directed, experienced engineer who wants to build the foundational infrastructure for private, trustworthy AI access, email me at viktor at ivpn.net for a one-page project brief.

Clerq | Senior/Staff Engineer | onsite (NYC) | https://clerq.io

Clerq is a NYC based fintech startup building a next generation platform payments platform that delivers a seamless checkout experience for high-ticket transactions. By leveraging modern bank rails, the platform offers the conversion and UX benefits of cards with risk and money movement infrastructure purpose-built for large purchases. Clerq replaces outdated manual payment methods like cash, checks and wires and expensive card surcharges with a smooth, integrated solution that helps merchants convert more customers without sacrificing margins.

We have started with the $1T+ U.S. auto vertical, where our platform is growing rapidly and already powering payments for several of the most recognized brands in the industry including multiple Fortune 500 companies. With proven traction, the company has expanded into high-growth adjacencies including high-ticket e-commerce, private travel and powersports.

We are a lean team and looking for senior or staff level engineers to help us accelerate our growth and build a future that doesn't rely on credit card networks.

Stack: Python/Django, React, Nodejs, AWS Comp: $180-210k + Equity

Email me at nick@clerq.io if you are interested in hearing more!

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

Trunk | https://trunk.io | DevRel Engineer - Remote US or Canada| Staff Full Stack Engineer | Sr Full Stack Engineer - San Francisco

Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. Some of our products:

  * Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged.

  *Flaky Tests: Detect and eliminate Flaky Tests.

  * AI DevOps Assistant: Automate Reccurring DevOps tasks in chat.

Our tech stack:

  * Frontend: Typescript, React, Redux, Next.js
  * Backend: Typescript, Node, AWS, CDK, k8s, gRPC
  * Observability: Prometheus, Grafana, Kiali, Jaeger
  * CLI: C++20, Bazel
  * VSCode Extension: Typescript
  * CI/CD: GitHub Actions
  * General: GitHub, Slack, Linear, Slite

Y Combinator (yes, the people who run this site) | Full stack web and AI | San Francisco | Onsite | Fulltime

YC itself hires software engineers from time to time. Many people don't know that YC has a small but very important software team. We run several websites - not just this one, but also workatastartup.com (the main way YC companies hire), a social network for YC founders, and the core infrastructure that YC itself runs on.

Recently, we've been spending most of our time building our own AI agents. Over the last year, YC has mostly funded AI agent companies, so it's been cool to go really deep building our own AI agents too. We're building agents to automate every aspect of what we do, and pushing the limits of what's possible with the current models to do it.

An unusual aspect of being on the YC software team is that you'll get full access to the YC program, founders and partners. The YC batch runs in the same building we work out of, so there are talks with famous founders happening most nights, right downstairs in our building. If you want to start a startup someday, working at YC would be an excellent jumping off point - several YC companies have come from team members who decided to start their own company.

YC works fully in-person in SF. We're happy to help you move here if you're in the US already. Unfortunately we can't sponsor new visas, but we're happy to transfer existing ones.

YC offers highly competitive compensation and benefits.

You can apply online (https://www.ycombinator.com/careers) or just email me at jared@ycombinator.com

HomeCloud | Senior Cloud Engineer (AWS / Node.js / TypeScript) | Remote (US, EU UTC-6 to UTC+2) | Full-Time (Contractor)

HomeCloud is a fast-growing proptech startup rethinking home inspections, onboarding, and management using cloud-native systems and AI. We just raised a $3.5M seed round from top VCs and are building intelligent infrastructure for the future of homeownership.

We’re looking for a Senior Cloud Engineer to help us build scalable backend systems on AWS using Lambda, Step Functions, DynamoDB, EventBridge, and more. You’ll work with a modern serverless stack, integrate AI services (e.g. OpenAI, Bedrock), and help define our engineering culture alongside the CTO and founding team.

You might be a fit if you:

• Have 5+ years of experience building serverless systems on AWS

• Are fluent in Node.js + TypeScript

• Have worked with serverless architecture and event-driven systems

• Are curious about AI/LLM APIs and how to integrate them into real-world workflows

• Value ownership, pragmatism, and building useful products quickly

This is a high-impact, remote-first role on a small, focused team building the foundation of a data-rich, AI-powered platform.

Remote (UTC-6 to UTC+2)

Apply: https://app.dover.com/apply/HomeCloud/24919848-66d7-48c0-bf5...

Learn more: https://gethomecloud.com/about-us

Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com

- Radar Labs is the geo-location dev tool. - Doing 1B+ API calls per day - Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US).

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband and other sensors and ML.

- Extracting raw map data from satellite maps and the web leveraging ML and AI

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

- Frontend tools to visualize and debug location data at scale

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

LiveKit | Remote | Livekit.io | VoiceAI | webRTC | Real-time communications

LiveKit is defining a new paradigm for now applications are built by providing the framework and network infrastructure for voice, video, and physical AI.

Hiring: >Software Engineer, Agents Hosting [All Levels: Senior, Staff]: https://jobs.ashbyhq.com/livekit/f152aa9f-981c-4661-99d3-683... >> Software Engineer, Gateway [All Levels: Senior, Staff]: https://jobs.ashbyhq.com/livekit/494d4741-18ac-4fda-89e0-b07... >>> Staff Developer Advocate: https://jobs.ashbyhq.com/livekit/030026fa-0f4c-4eb9-9dfa-c1a... >> Sales-Engineer (Pre-sales): https://jobs.ashbyhq.com/livekit/264ceda2-1de1-4ea2-912a-a4d...

What we are looking for: Builders!!!! >Passion for building something truly impactful >>Remote company, first principles, global presence!

SewerAI | https://www.sewerai.com/ | Staff Full-Stack Engineer | SF Bay Area Hybrid | Full-Time

About us: SewerAI is an AI-powered platform modernizing how cities and engineering firms inspect and manage sewer infrastructure. Using computer vision and geospatial analysis, we’re cutting costs, improving safety, and transforming how critical infrastructure is maintained.

Role: You’ll own features end-to-end: from AI-driven video analysis and mapping dashboards to scalable APIs and polished React frontends. Engineers on our team ship impactful projects like automated defect detection, real-time geospatial dashboards, and large-scale data pipelines.

Our Stack: React + TypeScript, Fastify, PostgreSQL/PostGIS, Prisma, Temporal.io, AWS, Docker, CI/CD.

What you bring: 5+ years full-stack experience with TypeScript, React, Node.js, and PostgreSQL. Bonus for geospatial, computer vision, or AWS.

Why SewerAI: High-impact work improving infrastructure communities rely on. Series B. Hybrid SF Bay Area (2 days/week). $180K–$230K + equity, full benefits, unlimited PTO.

Interested? Apply directly at: https://ats.rippling.com/sewerai-careers/jobs/be01efaa-2168-...

Furtim Modus | Hiring Java Developer (Full-Time) | NYC (HYBRID) | https://www.furtimmodus.com/software-engineer

We are currently seeking a talented and driven Java Developer to join our team full-time. This is an exciting opportunity to contribute your skills and expertise to a fintech venture with emphasis in capital markets tech based out of the New York City and in exchange we’ll provide you with base comp $125k-200k, full benefits, cash bonus, and equity.

Requirements:

- Electronic trading server-side software development experience

- Experience in Open Source technologies such as Aeron Transport, Aeron Cluster, Aeron Archive, Artio, Agrona, or CoinTossX is a big plus

- Experience with Adaptive Hydra trading platform is a big plus

Benefits:

- Flexible hybrid schedule to accommodate other commitments

- Collaborative and supportive team environment

- Relocation assistance to NYC Metro area

If you are passionate about Java development and interested in joining a fintech venture, we would love to hear from you. Please submit your resume if interested to agency@furtimmodus.com in this opportunity.

Category Labs | https://www.category.xyz/ | Remote and NYC | Full Time | $200K USD+

Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After recently raising $225M in series A funding, led by Paradigm, we are growing our team.

Senior SWE (Rust, C/C++): https://jobs.ashbyhq.com/category-labs/45f674b2-d904-482e-a5...

Smart Contract Engineer (Solidity): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...

Senior Researcher, Systems: https://jobs.ashbyhq.com/category-labs/015934c5-66e5-4042-94...

Better Stack | https://betterstack.com/ | /^(Full-?stack|Backend) Engineer$/i | Europe remote in UTC ± 3h

We are software builders at :heart:

CEO is a software engineer, COO is a software engineer and you guessed it; CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address.

We are looking for software engineers who, if given enough time, could build Better Stack on their own = looking for Full-Stack/Product Engineer/Generalist to help us create high-quality software with exceptional UX – end to end.

Apply at https://betterstack.com/careers/fullstack-engineer

How we operate: - https://betterstack.com/careers - https://betterstack.com/careers/engineering - https://juraj.blog

Memorang (AI-powered EdTech stack) | Full-Time | Remote Our mission: Build the AI stack for education—an agentic framework to launch, monetize, and power learning apps 50× faster. We bootstrapped to profitability, were voted #1 among 1,500 in the Vercel AI Accelerator, and collectively reach tens of millions of learners.

---------

Open Roles:

Full-Stack Engineers: Work on mission-critical, rapid POCs to MVPs using TypeScript, React/Next.js, AWS Lambda, Postgres, and Neo4j. Help shape infrastructure and UI for bleeding-edge AI-powered features.

Senior AI Agents Engineers: Own modular agent architecture, RAG pipelines, and LangGraph-based systems in TypeScript/Node.js. Architect reasoning layers, agent memory, and performance tuning for intelligent learning agents.

Product Designers: Design intuitive UX/UI for AI-powered content creation and learning tools. Collaborate closely with engineers on fast-moving features. We're looking for Figma power users who think in systems, move quickly, and have a portfolio of clean, polished, shipped work.

Technical Product Manager: Define schemas, APIs, and workflows that bridge AI research to production. Own developer tooling, agent orchestration layers, and internal platforms like Linear/Notion. Drive clarity, velocity, and scalability across multi-agent, LLM-powered systems.

--------

Why Memorang?

Remote-first, async-friendly team with flexible hours

Health & wellness stipends, home-office support, paid time off

Opportunity to ship systems used by millions—at a built-for-speed profitable startup.

--------

Apply here: https://memorang.com/careers

Or email careers@memorang.com with your CV, a short note (1–3 sentences) about which role excites you and why, and a link to your best project or portfolio.

ShieldAI | Web & Infrastructure Engineer | Full-time | Remote (US) or San Diego, CA with occasional travel

ShieldAI's Hivemind Special Project is hiring a Staff to Principal-level Infrastructure & Web Applications Engineer. We're a small team entirely comprised of L5-L8 ICs, working to bring seamless robotic behavior and coordination development from a sci-fi concept into reality. Our team work on a collection of long-term initiatives, demos, spike/proof of concepts, and assists to support Hivemind Product and Hivemind Solutions. LLM/AI applications for development acceleration represent a significant portion of our focus.

For this role, we are looking for someone deeply versed into Web Application and Infrastructure development. In particular TypeScript, bundlers, isomorphic development strategies, Web semantics, CSS/modules, browser performance optimization, protocols etc. If you have built custom webpack loaders, an SSR framework of FRP renderer from scratch, done packet level processing, or frame-rate optimizations in React, and have strong opinions about functional development and infrastructure please reach out!

Full Job posting: https://jobs.lever.co/shieldai/55c5676a-8b67-4379-84a8-58f59... If you are interested please contact me at [sp_hiring_sep2025 AT shield.ai] or apply directly on the job posting.

Rocket Alumni Solutions | https://rocketalumnisolutions.com | Technical Product Manager, Frontend Engineer | REMOTE (Crossover with EST timezone) | Full-time | $100k - $180k USD.

Rocket Alumni Solutions builds interactive recognition displays for schools, universities, and organizations. In 2025, we’ll surpass 1,400 touchscreen installations — profitable and scaling rapidly.

We're looking for a Technical Product Manager (description here: https://www.rocketalumnisolutions.com/hiring/technical-produ...)

Apply for Technical Product Manager: https://forms.gle/P32LiYfNLva8TsYt7

We're also looking for a Frontend Vue/TypeScript/Playwright Engineer (description here: https://forms.gle/QUvemqavKaZsmSE8A)

Apply for Frontend Engineer: https://forms.gle/QUvemqavKaZsmSE8A

Samsung Research America, Mountain View is hiring Multiple Speech Research Role [5+ yrs experience]. Both Speech to Text ASR, and Text to Speech TTS, Speech to Speech roles. You will get to work on cutting edge AI Speech Research.

TTS - https://job-boards.greenhouse.io/samsungresearchamerica/jobs...

We offer - Competitive base salary, bonus, 401k email me resume at akash.sahoo@samsung.com

Seeq | https://seeq.com | Staff Software Engineer (Full stack) | REMOTE (Some crossover w/ PST required) | Full-time | $140k - $180k + equity. Salary range for US-based; local adjustments for other countries. Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate outcomes for our users.

We've built up a great remote culture (e.g. annual meetups, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers (dev blog for more: https://geeq.seeq.com/).

Staff Frontend/Full stack Engineer (React, Typescript, Kotlin): https://apply.workable.com/seeq/j/D08DA1A63C/

Comity Inc. | Platform Software Engineer | Hybrid (Brooklyn, NYC)| Full-time

Comity is on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. Our team is leveraging statistical learning and convex optimization methods to build the financial rails of our future energy systems that will accelerate the deployment of clean energy resources.

You can read the full JDs and apply here: https://jobs.ashbyhq.com/comity?utm_source=hacker_news

Coder | https://coder.com/ | Multiple roles | Multiple locations | Full-time

Coder is an AI software development company leading the future of autonomous coding. We empower teams to build software faster, more securely, and at scale through the collaboration of AI coding agents and human developers. Our mission is to make agentic AI a safe, trusted, and integral part of every software development lifecycle.

Coder’s self-hosted Cloud Development Environment (CDE) is the foundation for deploying agentic AI in the enterprise. It provides a secure, standardized, and governed workspace to deploy autonomous coding agents alongside human developers, accelerating innovation while maintaining control and compliance. Coder's isolated, policy-driven environments improve productivity, cut cloud costs, and reduce data risks. Developers transition to AI at their own pace using their own tools. Platform and security teams can govern, audit, and manage a great developer experience at scale.

We recently passed 100k stars on GitHub! https://github.com/coder

All positions are fully remote in the countries listed unless otherwise specified.

[1] Senior Software Engineer, back-end Go (US/Canada)

[2] Senior Software Engineer, AI tools (US/Canada)

[3] Staff Software Engineer, front-end TypeScript/React (UK/Ireland/Poland)

[4] Software Engineering Manager (US/Canada)

[5] R&D Analyst (US)

[6] Customer Support Engineer, Pacific Time (US)

Apply here + job descriptions, salary bands: https://coder.com/careers?utm_source=O2n5Ew72WD

Not all of our jobs are listed here. Please note that you must submit an application to be considered for any of our positions.

JWP Connatix | AI Software Engineer | REMOTE (EU) | Full-Time

JWP Connatix is the most comprehensive independent video technology and monetization platform, helping broadcasters, publishers, and advertisers deliver premium streaming and online video experiences while maximizing video revenue across all screens. The company offers an end-to-end platform that streamlines live and on-demand video with hybrid monetization models, unique data and insights, unmatched customer service, and the largest independent premium video marketplace, providing the entire media ecosystem with enhanced scale, transparency, and revenue.

We are looking for a skilled and adaptable AI Engineer to join our AI Proof of Concepts team at JWP Connatix. You'll be responsible for implementing AI-First development methodologies, integrating sophisticated AI tools into our software pipeline, and rapidly building MVP prototypes that demonstrate innovative solutions. This role offers the opportunity to work at the cutting edge of AI-integrated development while delivering high-impact prototypes in a fast-paced, iterative environment. The ideal candidate thrives in rapid prototyping environments, has hands-on experience with AI tool integration, and enjoys the challenge of quickly turning concepts into working demonstrations for stakeholder validation.

If this sounds like something you'd be interested in please apply!

https://jwpconnatix.com/careers/job-posting/?gh_jid=7128853

Vantage | Senior/Staff Software Engineers | NYC and Remote | Full Time

Vantage is a FinOps / Cloud Cost Management platform that helps 15,000+ organizations globally like Block, Rippling, FanDuel, CircleCI, etc manage their infrastructure costs. We are a ruby/rails shop and if you love infrastructure, it's a very interesting role as our customers are others like you looking to manage their infra spend.

We're a well funded Series A company and backed by a16z and Scale. The company is about 50 people today and scaling up quickly.

The company is headquartered in NYC but US-remote friendly (sorry, we can't handle international at this time).

Website: https://vantage.sh/ Learn More: https://www.vantage.sh/careers

We’re a fast-moving team of aviators, engineers, and operators on a mission to transform aviation with an AI platform that makes flying safer, more efficient, and more capable. Backed by top investors and having already secured a dozen Department of Defense contracts and worked with three major airlines, we’re flying through barriers and working on a mission that matters.

At Beacon AI, there are no silos or layers of overhead. Small, focused teams own what they build, ship fast, and learn even faster. Every line of code, data pipeline, or system we design pushes the boundaries of how humans and AI work together in the cockpit and beyond. If you thrive at the intersection of hard-tech ambition and mission urgency, you’ll build faster here than anywhere else.

Open Roles:

++ Backend Software Engineers - Multiple Seniority Levels

++ Cloud Infrastructure Software Engineers - Multiple Seniority Levels

++ Cloud IoT Software Engineers - Multiple Seniority Levels

++ Backend & Cloud Infra Technical Lead Manager

Apply at https://beaconai.co/careers and mention HN. Let’s build the future of flight, together!

Ploid AI | Barcelona, Spain | HYBRID (preferably on-site) | Founding Engineers | Full-time + Equity

We’re building an AI-first bioinformatics platform to empower plant breeders and life science researchers with agentic AI and LLMs. Backed by pre-seed funding and real demand from biotech and seed companies, we’re looking for versatile founding engineers to help us shape the future of AI in genomics.

What you’ll do:

• Architect and build AI workflows, agentic interfaces, and data pipelines

• Work across the stack: Go, Python, TypeScript

• Contribute to system design, infrastructure (AWS, Docker, Terraform), and devops

• Collaborate closely with scientists and iterate from prototype to product

• Help define our technical culture and roadmap as a core founding member

Nice-to-haves (not all required): LLM integration, RAG systems, gRPC, scientific computing, cloud/on-prem hybrid systems

About us: We’re an early team of engineers and scientists with strong academic and industry backgrounds (ex-BCG, PhD in Plant Biotech, M.Sc. AI). We’re committed to building something impactful, technical, and genuinely useful for life science.

Apply: hello@ploid.ai

More about us: https://ploid.ai

We also consider internship requests from strong student candidates.

Update to our August post: Thank you for all the interest from HN! We have filled 2 out of the 3 open positions. We are now seeking for expertise in full-stack development.

Absinthe Labs | Full-Stack Engineer | Remote / NYC Hybrid | Full-Time |https://absinthe.network/

About us: Absinthe is building the most sophisticated gamification engine for crypto-native incentive programs. With 50M+ visits, 2M+ active users since 2022, we’re looking for a Full-Stack Engineer with a love of UX to accelerate our momentum.

Role: You'll own a diverse set of features end-to-end: from schema design, wiring GraphQL through polished frontends, to rapid deployments and monitoring. Recent examples shipped by single engineers include: - Unified social+wallet auth centralizing user identities. - “Buy-me-a-coffee” embeddable Web3 widget (<script>-based integration). - Webflow-like WYSIWYG loyalty-program builder. - Embedded Metabase analytics inside our app.

Our Stack: Next.js, Hasura, dbt, MotherDuck/DuckDB, GraphQL, in-house Web3 indexing.

What you bring:

Open Source Contributor: We love open source! Love for crafting efficient UX; shipping fast and iterating. Leverage LLM-based workflows in daily dev practices. A portfolio showcasing impactful, end-to-end fullstack projects.

Why Absinthe:

High-Impact Work: Join a tight-knit team shipping Web3 loyalty infrastructure that directly influences millions of users. Flexibility: Choose fully remote or hybrid (NYC). Competitive salary (region-based) and equity in a high growth Web3 startup.

Interested? Apply directly at: https://absinthe.network/careers#open-positions

Hearst | New York City - Hybrid or Remote | Full-time | Senior Engineer, Generative AI & Senior Program Manager, Generative AI

Hearst's corporate team is looking to fill two roles (in Engineering & Program Management) on its Generative AI Team, working to empower businesses across our diversified portfolio spanning publishing, health, transportation, and financial services. Our team's purview includes evaluating and benchmarking new releases, experimenting with the best ways to apply them to existing business problems, piloting POCs that demonstrate new ways of doing things, and accelerating the entire process on our team and within our various businesses through AI driven development tools & tactics.

Do you enjoy actively learning and experimenting with new tools & processes? Do you like solving problems across a wide range of domains and disciplines? Are you excited by the potential and application of emergent generative capabilities and agentic autonomous systems? Check out one of our open postings or feel free to reach out to me directly (https://www.linkedin.com/in/alexandria-redmon-5078865/):

Sr Engineer: https://eevd.fa.us6.oraclecloud.com/hcmUI/CandidateExperienc...

Sr Program Manager: https://eevd.fa.us6.oraclecloud.com/hcmUI/CandidateExperienc...

Materialize | NYC Onsite / Hybrid | Full-time

Materialize is the live data layer for apps and AI agents. It lets your team use SQL to create up-to-the-second views into any element of your business. Use Materialize to power data-intensive UIs, deliver fresh context to AI agents, and create event-driven architectures to power core business processes. Materialize is trusted by General Mills, Ryder, and Fubo.tv to solve their most pressing real-time data challenges.

Under the hood, Materialize is a novel distributed database capable of incremental view maintenance over arbitrary SQL. We think it's pretty cool :D

We are generally hiring for more database engineers! Lots of hard distributed systems and database problems to untangle these days:

* Database Engineers (NYC): https://job-boards.greenhouse.io/materialize/jobs/5550315004

We are also expanding our managed cloud offering. We're looking for cloud infra engineers with deep experience in GCP, Azure, and are excited about high quality IaC and security:

* Cloud Infra Engineer (NYC) : https://job-boards.greenhouse.io/materialize/jobs/5561561004

* Cloud Infra Engineer (Remote from West Coast US / on Pacific Time): https://job-boards.greenhouse.io/materialize/jobs/5616058004

Hardfin | Full-stack engineer | Denver metro, CO or Bay area, CA (REMOTE or ONSITE) | CA/CO ONLY | Full-time | 150k-180k salary

Hardfin is a B2B software platform for equipment manufacturers that enables them to track their assets and manage projects for their hardware. We are looking to add another fullstack engineer that can wear a bit of a product hat and is comfortable with "figuring it out" as they build.

Short and transparent hiring process, 30 min intro call, 30 min tech screen, 30 min vision/product call, 2hr technical test, 45 min culture fit call, offer. No panels, no leet code questions.

Requirements: 5+ YoE, 3+ Go, 1+ Typescript, 6+ months of working with AI assisted IDE/tooling.

See the full job rec/apply at https://wellfound.com/l/2Bs5iM

You can reach me directly at bweisbart -at- hardfin (.) com, please include "HN" in the email subject so I can prioritize a response to you.

Attendi | ML Platform Engineer | Amsterdam, Netherlands | ON-SITE hybrid | Full-time (80-100%)

Healthcare professionals have to spend too much time on administrative tasks when they should be spending that time delivering great care. Attendi allows healthcare professionals to report with their voice. This saves them precious time and removes the screen between client and caregiver, allowing more personal and effective care to be given. Burdened by an aging population, the healthcare sector is in desperate need of innovators like Attendi. We feel that we provide an extraordinary work environment: getting paid well to work with smart people on things that actually have a positive impact on society.

We are building the best-in-market speech-to-text and NLP solutions for Dutch health care professionals, and are looking for an experienced ML Platform Engineer to support in building and optimising our ML and data infrastructure with a focus on reliability, performance, and scalability. You will contribute to research and innovation, helping expand the capabilities of our AI-driven tools, building the next generation of our Speech-to-Text Engine — expanding into new domains and reaching a broader range of healthcare professionals.

We have a dedicated team with fewer than 25 members, which means no bullshit, moving fast, and getting a generous slice of equity. We're post product-market fit, profitable, and on the cusp of scaling up in the Dutch market.

Find out more and apply here: https://attendi.recruitee.com/o/ml-platform-engineer

Feel free to send any questions to berend@attendi.nl

Rover | Barcelona, Spain & Seattle, USA | Software Engineers (Multiple Roles) | Full-time

Rover is the world’s largest online marketplace for pet care. We connect millions of pet parents with trusted sitters and walkers, and we’re building a global platform that combines technology, community, and love for animals. With offices in Seattle, Barcelona, and beyond, we’re scaling an engineering culture focused on high-quality code, data-driven product decisions, and customer empathy. Open Roles: Lead/Senior Software Engineer, Acceleration (Barcelona)

Lead/Senior Software Engineer, Client Platform (Barcelona)

Lead/Senior Software Engineer, Sitter Experience (Barcelona)

Software Engineer II, Orders (Seattle)

Apply: https://www.rover.com/careers/engineering

TestBox | https://www.testbox.com/career | Multiple Roles | ONSITE San Francisco, CA | Full-time

TestBox is a fast-growing startup on a mission to fundamentally transform how software is bought and sold. We're building the next-generation infrastructure for software transactions, creating seamless experiences from initial interest to successful onboarding. We are backed by world-class investors and are looking for foundational team members to build greenfield systems and make a massive impact from day one.

I'm hiring manager for several key roles, onsite in San Francisco:

Senior Backend Engineer | $180k + Equity & Benefits | https://testbox.breezy.hr/p/cd4259566a98

Senior Full-Stack Engineer (Frontend Focus) | $180k + Equity & Benefits | https://testbox.breezy.hr/p/df48b9667887

Senior Software Engineer, Applied AI | $180k + Equity & Benefits | https://testbox.breezy.hr/p/14fdbd0b561d

Staff Technical Program Manager | $180k + Bonus, Equity, & Benefits | https://testbox.breezy.hr/p/c822a14a4103

Senior Product Designer | $160k + Equity & Benefits | https://testbox.breezy.hr/p/9bca001ba1d6

You can view all open positions and apply through our careers page: https://www.testbox.com/career

VitVio | Senior Full-Stack Engineer (Elixir, NixOS, React) | Remote (EU Timezones) | Full-Time | vitvio.com

We're building AI-powered systems to make hospital operating rooms safer and more efficient. We're looking for a seasoned engineer who values clean code, robust architecture, and a collaborative culture. You'll join a small, strong team and will have a massive impact on a product used in high-stakes clinical environments. We are looking for engineers with strong fundamentals, and who knows how to work efficiently in a team through code reviews and version control.

Tech: Elixir (Phoenix), NixOS, React, TypeScript, C++, Postgres, GraphQL, Google Cloud Provider.

We're looking for deep experience in at least Elixir or NixOS.

Apply and see more details here: https://jobs.ashbyhq.com/vitvio/5d9782f2-3834-429b-be99-dfbc...

We review applicants on a weekly basis.

ROCKSTAR GAMES | NYC-San Diego-New England| FULL-TIME | FULL ONSITE | .NET SOFTWARE ENGINEERS | Existing Visa Transfers Welcome

A career at Rockstar Games is about being part of a team working on some of the most creatively rewarding and ambitious projects to be found in any entertainment medium. You would be welcomed to a dedicated and inclusive environment where you can learn, and collaborate with some of the most talented people in the industry.

RESPONSIBILITIES

Develop highly scalable server-side features for our online game console clients using object-oriented development in C#, ASP.NET, and SQL Server.

Develop back-end services and APIs. Actively practice Test Driven Development (TDD) while developing new features and refactoring existing code.

Work in an AWS cloud-based, event-driven microservice architecture with a high priority on web performance optimization.

Collaborate with other Rockstar technology teams across our worldwide studios.

New York: https://grnh.se/01daf4583us

San Diego: https://grnh.se/87116de23us

New England: https://grnh.se/3d1c2f9a3us

You can see our other openings here: https://www.rockstargames.com/careers/

Equity Trust | Lead ML Engineer | Cleveland, OH or REMOTE | Full-time | 150 - 180k

Equity Trust is a custodian of self-directed IRAs that gives clients the tools to manage their own retirement accounts, and to invest in a range of traditional and alternative assets. We have been helping clients steer their own retirement accounts for over 50 years, and now have over 400,000 accounts, and over $65 billion in assets, under custody. We have offices in Ohio, Florida, Texas, and South Dakota if in-person work is your jam, but fully support remote work as well.

The role: We're looking to add a founding ML engineer to build out our data science practice (and ideally hire and lead a data science team). You would be our first ML hire and working alongside our data engineering and product teams to identify, scope, POC, and productionize relevant analytic use cases to help drive new and improved product offerings, and to elevate our client experience. Our data eng stack is mostly Python + AWS, and you will have the resources and support to develop an ML stack alongside that. Generally, if you like working with data, tackling open-ended problems, and (optionally, but always nice) building cool products to help folks take a more active role in their investments --- you'll probably have a good time here!

You can apply directly here: https://www.paycomonline.net/v4/ats/web.php/jobs/ViewJobDeta...

If you'd like to learn more, drop me a line at c.wetherill [at] trustetc.com

NOTE: Although the role is remote, we are only set up to hire out of certain states (generally the midwest, central, and southern US). Notably, we are not able to hire out of CA or NY. Feel free to email me before applying and I can confirm if we're able to hire out of a specific state

Prove AI| AI Management start up| Fully Remote | Full time (B2b or employed if in US, UK or Switzerland)| Seeking Full Stack and Senior Full Stack Developers

Prove AI is an AI management platform that helps organizations centralize and manage their AI models while maintaining strict oversight of data access and usage. Built on distributed ledger technology, Prove AI provides tamper-proof oversight, ensuring organizations can set and enforce guardrails to mitigate risk and optimize AI performance.

This is a hands-on engineering role for someone excited about crafting production-grade software, solving complex problems, and contributing to a high-performing product and engineering team. As a Full Stack Developer you will work across the stack—primarily using TypeScript, React, and Node.js—with opportunities to contribute to both backend systems and frontend interfaces. While the role values frontend capability, strong backend engineering experience is essential to support our API layer, data processing, and system integrations.

To apply please apply directly via this link https://proveai.careers.hibob.com/jobs/1a652b22-bdf9-438a-a9... (please ignore location as we are fully remote and will accept applications from any location or contact Richard Morrow - richard@proveai.com

N43 Studio is a venture studio dedicated to building bold, technology-driven companies from the ground up. We identify emerging opportunities, develop ideas into working prototypes, and launch ventures designed to scale.

We’re hiring a full-time, Senior Full Stack Engineer to join our first product pod and help bring our first venture to life. You’ll work alongside a product manager, front-end engineer, and back-end engineer, supported by a Principal Architect and the studio leadership team. You’ll have autonomy, clear ownership, and the chance to shape both the product and our technical foundations from day one. This is a hybrid role, 3 days a week based out of our Toronto office.

What We’re Looking For

- 5+ years of experience building full-stack web applications, ideally in startup or venture environments. - Strong proficiency in Python, particularly with modern frameworks like FastAPI or Flask. Experience in other backend languages (e.g., Node.js, Go) is a bonus, but Python is our primary stack. - Proficiency with modern frontend frameworks such as React and TypeScript. - Familiarity with cloud infrastructure (GCP preferred) and DevOps best practices. - Comfort working in high-ambiguity, high-velocity environments with a lean, collaborative team. - A builder mindset—you’re as comfortable iterating in code as you are thinking about product.

Apply here: https://ats.rippling.com/north-43-west-79-studio-inc/jobs/e4...

Imbue | https://imbue.com | Data Engineers | Full-time | San Francisco, CA (ONSITE)

Imbue is building a coding agent environment (https://imbue.com/product/sculptor/) that imbues engineering wisdom into LLM workflows—so anyone has the power to create software they can trust.

We aim to rekindle the dream of personal computing and make software creation accessible to all, so every person can have the power to shape their computational future.

For more example projects and benefits, see the full job description: https://imbue.com/careers

Please apply through the website above. All submissions are reviewed by a real person!

Duranta | https://www.getduranta.com/ | Seattle, WA | ONSITE | Full-time

Roles: Computer Vision Engineer

We are building software to help lawn care professionals & landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible.

Duranta was founded a little more than a year ago. We are well funded and are expanding our team. Join us, as our second CV/ML engineer and help lead Duranta's computer vision efforts. You'll work on foundational models for aerial imagery understanding, using one of the largest aerial datasets ever assembled, and: Collaborate with the founders and a world-class CV/ML advisor to push the limits of aerial image understanding Architect scalable training & inference pipelines Build and refine models for fine-grained semantic and instance segmentation Drive experimentation and infrastructure for rapid iteration Help define our CV roadmap—from model architecture to dataset strategy to active learning

Stack: Python, PyTorch, Mask2Former, SwinV2, AWS, W&B

If you're interested in working with us, please apply online. Mention you're from HN and let us know why Duranta is of interest and what you've been working on lately.

Please apply on: https://jobs.lever.co/getduranta

Franklin Templeton | Quant Implementation Lead | Boston, MA | In-Person | $145k - $190k + Bonus

We're building an end-to-end portfolio construction system to support FTIS a $100bn multi-asset investment manager within FT. This is a front office role that will help guide our quantitative staff as we build out this new system. This project is a strategic objective for FTIS, highly visible, and frankly one of the most fun jobs in the industry.

We're looking for mid to senior level researchers or developers with strong buy-side backgrounds who can help translate our investment process in to a robust, scalable, and approachable design.

Reach out with any questions - dan.nadler (at) franklintempleton (dot) com

Apply here: https://franklintempleton.wd5.myworkdayjobs.com/Primary-Exte...

Modash.io | Multiple Roles | Remote (EU) | Full-time

• Modash is an end-to-end influencer marketing platform for Shopify stores.

• We help every creator earn a living.

• Headquartered in Tallinn, Estonia, with engineering distributed across Europe.

• 60 person team, raised €11M in Series A funding, ARR growing 2x YoY.

—

Remote, Europe

Senior Product Engineers https://apply.workable.com/modash/j/C1507B65C3/ (€60k-100k)

Senior Data Engineers https://www.modash.io/careers/senior-data-engineer (€60k-140k)

Senior Backend Engineer https://apply.workable.com/modash/j/D4FA5BA3E6/

Senior Product Designer https://apply.workable.com/modash/j/5C9A805E59/ (€50k-80k)

Senior Marketing Designer https://apply.workable.com/modash/j/48D2B2DCBE/ (€55k-80k)

—

Toronto, Ontario, Canada

Technical Customer Success Manager, API https://apply.workable.com/modash/j/96C4941FE6/

—

More roles: https://www.modash.io/careers

Moyai | Amsterdam, The Netherlands | Full Time | Onsite | Founding AI Engineer | 60k-80k + Equity

About the company:

• Technical founding team with relevant industry experience (part of Nvidia Inception Program)

• Backed by well-known European VCs (SpeedInvest+Galion.exe)

• Building agentic advanced analytics and fine-tuning analytical reasoning models

Ideal candidate:

• Demonstrated shipping ability with past projects & roles

• "Young and hungry” mindset, prioritising ability to learn with agency over experience

• Familiar with fine-tuning algorithms and frameworks, transformers/trl, ART, verl and unsloth

• Bonus points for experience in contributing to open-source projects, startups, AI agents, & similar technologies

Reach out to the founder directly: https://www.linkedin.com/in/rhommes/

Lara Health | https://lara.health | Several roles | USA | REMOTE | Full-time

Lara Health is on a mission to transform how healthcare is delivered for chronic care management. We enhance patient care, improve operational efficiency, and create new, diverse revenue streams for healthcare organizations.

- Senior Back-end Engineer

- Senior Front-end Engineer

We are looking for self-starters with a growth mindset, with strong accountability, and ready to take ownership. You’ll have the opportunity to work across the stack, solve complex problems, and contribute to mission-critical applications. Email: stars [at] lara.health

Sumble is the newco from the founders of Kaggle. We are hiring software engineers, data engineers, machine learning/ai engineers, a product manager and a designer. Can view our roles and apply here: https://apply.workable.com/sumble-inc/

As background, we are building a knowledge graph from web data with a first focus on data for go-to-market teams. We use sources like job posts and resume data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the primary destination for accessing high-quality web data. Try the product at sumble.com.

We are a team of 15, including 10 engineers with experience at companies such as Google, Meta, Stack Overflow, and Kaggle.

FusionAuth | Senior Security Engineer, Documentation Engineer, Sr Developer Advocate | Denver, CO, USA ONSITE/hybrid for the security engineer, others are Remote USA | Salaries listed on job req, but for the Security Engineer it is 140k-200k

Our mission is to make authentication and authorization simple and secure for every developer building web and mobile applications. We want devs to stop worrying about auth and focus on building something awesome. There are a lot of companies in the auth space, but we feel like we have something special:

* a unique deployment model (self-host on-prem or in your cloud or run in our cloud)

* A well designed API first approach; one customer compared our app to petrichor

* a mature product (the code base is over eight years old and we've found and fixed a lot of the sharp edges around core login use cases; however there are plenty more features to add)

* founder-led; the CTO is an engineer who still writes code

* a full featured free-as-in-beer version that makes the sales cycle easier; prospects often come in having prototyped an integration already

Our core software is commercial with a "free as in beer" version. We also open source much of our supporting infrastructure. We are profitable but raised money in 2023 to accelerate our growth (more on that here: https://fusionauth.io/blog/fusionauth-funding ).

Technologies and standards that you will work with: Modern Java, MySQL, PostgreSQL, Docker, Kubernetes, OAuth, SAML, OIDC.

Learn more, including about benefits and salaries, and apply here: https://fusionauth.io/careers/ ( Click/tap the 'View open positions' orange button. )

Komodo Health | Applied AI Engineer | Full-Time | $200-$253k + equity... | SF/NY Once-a-month-few-days / Remote US. Can sponsor.

Healthcare in the U.S. is a mess. Komodo Health is fixing that—with data. We’ve mapped the patient journey across the country to build the most complete picture of disease burden and treatment gaps. Our customers are pharma, payers, and health systems who actually want to do something meaningful with that information.

We have an exciting product, marmot, that is AI-native, both in the interface as well as in development, and want to carefully grow high productivity teams around this offering. AI integrated with Komodo's data is giving some of the most unique, real world insights any of us has seen come out of the new LLM era. Our product was just featured on Times Sqaure too! https://www.linkedin.com/posts/komodo-health_last-week-our-d...

We are looking for highly independent individuals, who can work in a new, small, but empowered team. What will you be bringing? - Proven experience working on Agentic systems that solve real problems OR Some evidence you have the "instinct" Andrew Ng mentions as the differentiators of successful Agent builders. We also take full ownership of the product, so experience+readiness for fullstack development is a must. Core ML experience is not required and for this position, not relevant at all. The new LLM/Agent era is... different.

Perks will include annual conference trip, periodic travel to SF/NY for on-site, Executive Coaching, etc.

If this post sounds exciting, please apply at https://job-boards.greenhouse.io/komodohealth/jobs/806961600... (mention HN as the source). Please note, we can only consider applicants who are already in the US.

If you wish, please also email me at ramraj.velmurugan@komodohealth.com with an example of how you have figured out that instinct I mention above.

Cassidy (Series A) - Full Stack Software Engineer (All levels) - New York City (In-Person) Cassidy (https://cassidyai.com) is a no-code platform that allows businesses to build custom AI assistants that automate complex business processes, powered by internal company data. By connecting to a company’s knowledge (docs, wikis, calls, etc.) and leveraging major AI models, Cassidy aims to be the “AI colleague” for every team—helping them work 100x faster without heavy engineering overhead. We're well funded, growing incredibly fast and have an insane distribution advantage in a growing market.

----

If building powerful and reliable automation primitives for non-technical users sounds interesting to you, I'd love to chat! Reach out to ian@cassidyai.com or apply at https://cassidyai.com/careers.

Proton | AI Engineer | Geneva, Paris, London, Barcelona, Prague, Taipei, EU Remote | Full time

We recently launched Lumo, a privacy-friendly ChatGPT alternative, by the makers of Proton Mail & Proton VPN.

We are looking for curious and talented people to help us grow Lumo with any of these skills: ML engineering, LLM inference, GPU infra & devops, Frontend (Typescript, React), Backend (Rust, PHP). Looking for senior-level or fast-growing juniors.

I'm one of Lumo's core devs, write to me directly at marc dot dupont, domain proton ch, with "HN" in the subject.

https://lumo.proton.me

Mathlib Initiative | DevOps Engineer | Fully-remote | Full-time

The Mathlib Initiative is a new programme of Renaissance Philanthropy. We exist to support Lean's open-source library of formal mathematics known as Mathlib https://leanprover-community.github.io/

Please apply directly at: https://www.renaissancephilanthropy.org/careers/devops-engin...

OneCrew | Multiple Roles | ONSITE / HYBRID | San Francisco, CA

OneCrew is the leading unified platform helping paving contractors estimate accurately, manage crews effectively, and track profitability in real-time. We eliminate the costly mistakes and wasted time that come from juggling multiple disconnected systems—giving contractors a single source of truth to run their entire operation.

We recently closed our Series A and are looking for highly motivated individuals to own their domain and accelerate our growth.

  - Engineering Manager
  - 3x Software Engineers (Fullstack, Frontend, Backend)
  - Product Manager
  - Growth

Stile Education | Melbourne, Australia | Hybrid/Onsite | Full-Time https://stileeducation.com/au/who-we-are/engineering-at-stil...

We're high-performing, diverse, tight-knit team with a mission to radically improve mainstream science and maths education at schools. By creating the best lessons in the world, coupled with intuitive tools that allow teachers to take advantage of the latest pedagogies, we’ve already helped millions of students in Australia get excited about science and maths.

45% of Australian science students in years 7-10 use Stile. Help us scale from 500k to more than 5 million students across Australia and the US over the next two years!

We now have offices in Melbourne, Boston, Portland and more! We're primarily hiring in Melbourne (relocation assistance and visa sponsorship available), but there will be lots of travel opportunities.

We're looking for a bunch of new roles right now (not all on our jobs site yet; please reach out if you're interested even if you don't seem to fit a specific role!):

  - Engineering manager
  - Full Stack Staff Engineer
  - Platform engineer
  - ML/AI engineer
  - Automation engineer
  - Principal+ engineer
  - Frontend engineer

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience or a Masters or PhD in lieu of work experience. (Roughly 30% of our staff have PhDs.)

Technologies: Mostly C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and other projects use Python, some projects use Java or Javascript/Typescript/React.

Apply online at https://www.stellarscience.com/careers/.

PredictDAO | Full-stack engineer | Remote (Western Hemisphere) / NYC | Full-time | $200k - $300k

PredictDAO is a blockchain-based nonprofit global health organization building prediction markets for real-world public goods in the healthcare sector. The intended users for our tools include foundations, aid agencies, and high-net worth individuals.

We are pre-launch, with two full-time employees at the moment, and interested in finding another engineer who is excited about our mission of saving and improving lives by filling some of the funding gaps caused by recent budget cuts to USAID.

Email jobs -at- predictdao (.) com and please include "HN" in the subject line.

Neuralwatt | https://neuralwatt.com | REMOTE (US – Seattle/Denver/Boulder metros only) | Full-time | $180k–$220k DOE Energy is the #1 constraint in new datacenter buildouts. Neuralwatt is reshaping AI compute around energy efficiency to maximize revenue per kilowatt. We’re a VC-backed, early-stage startup building optimization tools for AI, HPC, and datacenter workloads.

We're hiring 2 experienced founding engineers to help architect our core systems and work directly with customers.

What you'll do:

Technically: Architect critical datacenter infrastructure - Write Rust and Python - Measure real-world energy impact - Design state-of-the-art AI-led optimizations

Non-technically: Help build the business and win customers - Present at conferences - Develop marketing and company materials

Requirements:

- 5–10+ years of software development experience

- Thrive in ambiguous, outcome-driven environments

- Experience working closely with customers

- Clear communication and strong leadership

- Familiarity with LLM/AI infrastructure

Location: Remote-first, but we meet regularly in Seattle/Denver metro areas.

To apply: Email: scott@neuralwatt.com Subject: HN Hiring Include: - Resume - GitHub profile - A short note on why you're interested.

Please note: At this time, we are unable to offer visa sponsorship.

Rappo | https://buildrappo.com | Founding Applied AI Engineer | Remote or Onsite SF

Hi, we have been working on a personal assistant for knowledge professionals. A lot of challenges around building an advanced RAG, improving reasoning, and custom models

Learn more about the role: https://wellfound.com/jobs/3382533-senior-ai-ml-engineer or email vignesh@buildrappo.com

PS: I am a solo founder, and we are generous with equity

Konvu | https://konvu.com/ | Software Engineer | FULLTIME | ONSITE | Paris, France

At Konvu, we’re on a mission to make security invisible. As we move towards a future dominated by code automatically generated, tested, and deployed by AIs, we need a new paradigm for application security. Vulnerabilities must be automatically detected, prioritized, and remediated.

Behind Konvu are founders with deep roots in the security industry. As early employees at Sqreen YC W18, a notable security startup acquired by Datadog, we have firsthand experience in driving security solutions from concept to global impact.

We’re looking for:

* Product Engineer https://jobs.ashbyhq.com/konvu/be7be978-08be-4672-a9e5-a559e...

* Product Engineer (AI Agents) https://jobs.ashbyhq.com/konvu/be028b43-a7a7-4f0a-b968-320dd...

* Founder Associate https://jobs.ashbyhq.com/konvu/36074d15-1958-48e7-8fa4-96fd7...

Read more about how we're building Konvu the YC-way: https://konvu.com/blog/yc-culture

9 Mothers Defense | Robotics Eng. & Computer Vision / Data Scientist | Hybrid (Austin TX) | Full-time

Building AI-driven turrets that stop hostile drones. We need sharp, hands-on engineers:

Embedded Robotics: Python on Jetson, CAN (+ EtherCAN / EtherCAT) drive buses, high-speed cameras, real-time PID/servo control, ROS, TensorRT

Computer Vision / ML: detection + tracking, transformer-based visual models, TensorRT tuning on Jetson

US persons only (e.g. green-card, citizens). Shoot your résumé / GitHub and a quick note on why you're good fit to jobs@9mothers.com

P2P.org — We’re Hiring (Remote / Global)

P2P.org is the largest institutional staking provider with $10B+ TVL and 20%+ restaking market share. Clients include Crypto.com, Ledger, BitGo, OKX, ByBit and others. We’re expanding our teams — and hiring now.

Open Roles - Product/ Blockchain Analytics – Blockchain & staking data, validator performance, user behavior. SQL + Python, Web3 a must.

- Junior Analyst (urgent) → SQL, Excel, reporting. No Web3 needed.

- Analytics Engineer → Build data marts & automation pipelines. Blockchain knowledge a plus.

- Financial Assistant (Tres Finance focus)- Preferred location: Southeastern/Central Europe Remote– Manage crypto asset data, reconciliations, automation (Tres, QuickBooks, Fireblocks, IBM PA). 3+ yrs finance/accounting; crypto exp a plus.

What we offer: Fully remote, competitive pay ($ or crypto), education + wellness support, co-working/gear budget, global team.

Apply by email: sara.ibraimoska@p2p.org

Uncountable | NY, SF, London & Munich (In-Person) | Full-Stack Engineering

https://www.uncountable.com/hiring/hn

Uncountable accelerates R&D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 50 to 100 over the last two years.

Full-Stack Engineers | $120k - $220k + Equity

---> Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack.

--> Summer internships and working student positions are also available.

Learn more: https://www.uncountable.com/hiring/hn

Uncountable is hiring in New York City, San Francisco, London, and Munich.

Contact our CTO directly at jason@uncountable.com

Pairtu - https://pairtu.com - SF or remote in US timezone

We just raised series seed and looking for a founding engineer. We're reshaping healthcare for the $60 billion Medicare market.

Engineering culture is one that values learning, freedom to write code instead of overhead, fast pace, and using AI tooling both in engineering and inside our product. If you've wanted to build with an AI API or toolset this is the place to do it.

Job description: https://pairtu.notion.site/Senior-Engineering-Lead-AI-First-...

Please reach out to ian@pairtu.com and mention you saw this listing.

Langdock (YC S23) | Product Engineers (Full-stack), Infrastructure Engineers, AI Associates | Berlin, Germany ONSITE | https://langdock.com

–

We're Langdock, and we've built the LLM platform that 1,300+ companies trust to power AI features for 100,000+ users. After hitting $9M ARR with 10x year-over-year growth, we're expanding our Berlin team to shape the next chapter of conversational AI.

–

Product Engineer (Full-stack) | €66K – €102K | Equity | €10K – €30K Bonus

Build product features from conception to deployment, collaborating closely with our CPO and working across the entire tech stack to deliver AI-powered features that drive enterprise adoption.

Stack: NextJS, React, Prisma, Postgres, Redis

-

Infrastructure Engineer | €66K – €102K | Equity | €10K – €30K Bonus

Contribute to our deployment infrastructure and lead integrations with customer cloud environments. You’ll work hands-on with the latest cloud and container technologies, ensuring our platform runs reliably and securely for some of Europe’s top enterprises

Stack: Terraform, Azure, AWS, GCP, OpenShift

-

AI Associate | €66K – €75K | Equity | €10K – €15K Bonus

Three-month rotational program with a pathway to high-impact commercial roles. You’ll join a cohort of technical, customer-facing talent who build deep product expertise and commercial acumen from day one.

-

Check out our jobs page here: https://jobs.ashbyhq.com/langdock

V7 | www.v7labs.com | London or New York | Hybrid

_______

Growth Hacker - https://bit.ly/41wPdmH

* You're not just a growth marketer. You’re a full-stack creative operator. * You’ve probably done things like:

* Run playbooks that didn’t exist yet * Gotten products featured on Times Square billboards and Reddit threads * Built shareable mini-tools that turned into full-on acquisition channels * Sent physical mailers that turned into million-dollar pipeline * Landed your company on 10+ podcasts in a quarter * Have taken a product from 0–1m+ MAUs or scaled growth to $5m–$20m ARR * Built acquisition loops from scratch * Know how to make technical content go viral * Are a creative thinker with deep operational range * Can juggle many ideas, experiments, and channels at once

____________

AI Engineer (Building Agents Product) - https://bit.ly/3HWgici

* Build LLM agents for document understanding, search, and image recognition that go from prototype to production fast

* Write clean, tested Python code that scales—no research papers, just working AI features

* Collaborate with AI and product teams to iterate on solutions that customers actually use

Revere Defense Technologies - Autonomous Networks and Infrastructure

San Francisco (Dogpatch) | On-site w/ flexibility | Full-time | Multiple Roles, $120k–220k + equity + benefits

Why: Comms are contested. Radios make you a target, satellites aren’t guaranteed, and brittle legacy networks won’t survive future fights.

What: We’re building an autonomous maritime network — think distributed systems in the ocean—extending resilient comms, sensing and compute to the edge in high-threat remote environments.

Who we are looking for:

- Software Engineers: large-scale distributed systems, networking, system design, embedded software, DevOps rollouts. Python, C++, Rust. Bonus: SDR, mesh, security.

- Electrical Engineers: PCB layout, embedded, RF, circuits, power/batteries, electro-mechanical. Bonus: DSP.

- Marine/Mechanical Engineers: pressure vessels, subsea robotics, gliders, ruggedized design; DFM, reliability, field deployment.

You will: ship code to robots, test on the water, move fast, own big surface area, and work directly with military operators.

About Us: Our founding team includes a Navy SEAL veteran, defense industry engineers, builders, hackers, and watermen (sailors, boaters, divers, fishermen). We’re focused on real future missions — not legacy requirements. Venture-backed; public launch soon.

Eligibility for a TS/SCI security clearance is a plus. Please send a short note + resume/portfolio to jobs@reveredefense.co with subject HN – Engineering.

Beautiful.ai | Full-Time | Remote in US & CAN | SaaS B2B Presentation Software | Series B | 16M Funding | AI Industry

1. Head of Enterprise Revenue & Go-To-Market | 225k - 250k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4622705007

2. Performance Marketing Manager, Paid Search | 115k - 130k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4823739007

3. Senior Platform Engineer | 160k - 200k Base salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802989007

4. Senior QA Engineer | 100k - 130k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4803551007

5. Senior Software Engineer | 160k - 200k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802854007

6. Software Engineer | 120k - 160k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802768007

7. Staff Platform Engineer | 200k - 250k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4803038007

8. Staff Software Engineer | 200k - 250k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802916007

Odevo | https://odevo.com | DevEx Engineer | Stockholm, Sweden | Full-time

Odevo is a PE-backed PropTech company with 2.2 million properties under management across Europe/US. We are growing fast and recently started a DevEx function, and I need some extra help there :)

https://career.odevo.com/jobs/6376310-devex-engineer

Cambridge Terahertz | https://thzcorp.com | ONSITE Santa Clara, CA | Full-time

Cambridge Terahertz is a rapidly-growing startup with the mission of detecting weapons and saving lives by bringing airport-level security to the masses. Our full-custom silicon enables orders-of-magnitude improvements in THz phased array radar imaging, unlocking new use cases in 3d-imaging. We are one of the only companies in the world to commercialize THz technology. We've raised series A-level funding, numerous gov't contracts and are adding to our world-class team in Santa Clara with various roles across hardware and software. We are in-person first and provide generous equity and benefits. Open roles:

Principal EE Lead: https://jobs.gusto.com/postings/cambridge-terahertz-principa...

Principal Radar Imaging Engineer: https://jobs.gusto.com/postings/cambridge-terahertz-principa...

Zeven | Senior Backend Developer | ONSITE in Zurich (Switzerland) | Full-time | Competitive salary + stock options

We're a newly-founded and well-funded startup that is seeking to revolutionize the sports industry with AI-powered solutions. Our mission is to unlock human potential and redefine the sports experience through innovation and technology.

We are looking for an experienced Senior Backend Developer and sports enthusiast to join our on-site team in Zurich, Switzerland. This is a hands-on, high impact role. We use Typescript for web, Python for ML, PostgreSQL, React + TanStack, AWS and SST.

Please see the Full Job Description [https://tinyurl.com/sw-zeven] for requirements and more details about our Tech Stack.

We are offering full-time employment with a competitive package:

• Competitive salary and stock options.

• Pension plan bonus and 25 days of paid vacation plus public holidays.

• Charming office next to the lake of Zurich with fully-equipped kitchen.

• Top-notch equipment (MacBook Pro laptops, standing desks, etc.).

• We love to organize company outings and sport events.

If you're a motivated and experienced backend engineer who is crazy about sports and looking for a new challenge, we'd love to hear from you! Please email CVs to alex@zeven.ai

We do not consider remote candidates, agencies and candidates located outside the EU/UK/EEA/Switzerland

Gigs (YC W21) | Multiple US & EU Locations (SF, NY, Berlin, London) | Full-time

At Gigs, we're building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products. Klarna's US mobile plan is powered by Gigs!

We are looking for exceptional candidates, looking to do the best work of their careers, across a wide range of roles:

- Senior Backend Engineer(s) - Senior Full Stack Engineer(s) - Senior Product Manager(s) - Engineering Manager(s) - Implementation Manager(s)

To review all open roles and benefits, go visit our career page https://gigs.com/careers

Humaans (YC W21) | Engineering Leads, Senior Full-Stack Engineers | London (Hybrid, 3 days/week) | Full-time | https://humaans.io/

Hello! Co-founder of Humaans here. We’re building a best in class HR platform that automates people operations end-to-end for globally scaling companies.

What you’ll work on:

* Agentic AI for end to end automation and AI functionality all over the product

* Modern client rich UIs including workflow builders, drag-and-drop task managers, collaborative spreadsheets

* Realtime systems via WebSockets, Feathers.js, zero sync engine

* Scaling our data and AI architecture to fly for customers with 1,000s of employees

Why we like it here:

* Quality-first culture - design, performance, and DX matter

* Small, senior team with ownership from product definition to release

* Backed by great partners (YC and execs from Slack, Shopify, Figma, LinkedIn, Stripe, Intercom, Notion, etc.)

Our stack:

* TypeScript, React, Node.js, Postgres, Redis

* Monorepo with Turborepo, pnpm, GitHub Actions, Kube and CloudRun on GCP

Apply here: https://jobs.ashbyhq.com/humaans?utm_source=7nNGnERWLP

Formal | Multiple Positions | REMOTE | Full-Time | $100k - $250k + Equity

At Formal [0], we’re rethinking serverless from scratch: we’re building a new computing stack for instant, globally available, truly elastic, soundly isolated execution. We leverage formal methods and languages to build OS interfaces with low overhead, formally verified isolation without containers or VMs. Our immediate goal is to write a new programming language to replace eBPF and build the world's first serverless networking infrastructure.

We are a 5-person, VC-funded team with PhDs from Stanford, UW, OSU, and Brown, advised by professors from MIT and UWaterloo. We are currently hiring for the following four positions:

- [1] Staff Software Engineer: Compilers, Programming Languages, and Verification (≥ $200k + ≥ 0.5%)

- [2] Formal Verification Engineer: Formal Methods and Programming Languages ($120k - $200k + ≥ 0.25%)

- [3] Software Engineer: Compilers and Programming Languages ($100k - $175k + ≥ 0.2%)

- [4] Formal Methods PhD Intern: Formal Methods and Programming Languages (≥ $5k / month)

Please see [5] for general information. To apply, email us at (work at formalstack dot com) and let us know how your experiences fit the role and its requirements.

[0]: https://formalstack.com [1]: https://formalstack.com/jobs/09-2025/staff-software-engineer... [2]: https://formalstack.com/jobs/09-2025/formal-verification-eng... [3]: https://formalstack.com/jobs/09-2025/software-engineer-v.pdf [4]: https://formalstack.com/jobs/09-2025/formal-methods-phd-inte... [5]: https://formalstack.com/jobs/09-2025/info.pdf

Saris AI | Full-Stack + ML Engineers | Full-Time | Onsite / Remote | Montreal, Canada

Hi HN, we are an YC alum founding team rethinking back-office workflows for banks and credit unions. We're tackling a $100 billion problem with the kind of automation problems that require long-context reasoning, tool orchestration across many critical systems, and strict compliance loops: the ones without known answers.

We've shipped real agents that handle real customer workflows in production. With a growing customer base and live deployments, we're scaling up fast and looking for deeply technical builders who want to have outsized impact early.

See more about the role & apply here: https://www.linkedin.com/jobs/view/4281413302

Howie.systems (EU VC funded) | Full-Stack (AI) Engineer | ONSITE Vienna, Austria | Full-time | Start date: ASAP

- We’re building Howie.systems, an AI platform for the architecture/engineering/construction industry. Our focus: automating knowledge extraction and retrieval from large document sets (100k+ files, multi-tenant, multi-user, with Supabase/Postgres + pgvector under the hood). We’re fully funded by international investors and are expanding our team in Vienna.

Role: We’re looking for a Full-Stack Engineer with a love for strong typing and AI.

- Must: Next.js, Supabase, very TypeScript-safe mindset

- Super plus: experience with AI frameworks (Vercel AI SDK, Mastra, LangChain, etc.)

- Should have good experience with AI Coding tools like Cursor, Cloud Code

You’ll help us scale our ingestion, RAG, and AI interaction layers into production-grade tools dealing with enterprise customers

What we offer:

- Competitive salary + equity possible Onsite in Vienna (no remote option)

- Small, hands-on team with big international backing Work on a fully modern stack (TS, Supabase, Vercel, AI frameworks)

If this sounds like you, send your CV and a cover letter to: contact@howie.systems Please include within the cover letter, detailing your experience and why you think you would be a fit for the role

Class Central | Senior Full Stack Engineer | Remote | https://www.classcentral.com

I'm looking for a senior engineer to take ownership (from me) of Class Central's codebase and infrastructure.

We help tens of millions of learners find the best courses on any subject. Small team (6 people), profitable, independent, and around for 13+ years. No VC drama, just sustainable growth.

Stack: PHP 8+, Symfony 7+, MySQL, Elasticsearch, Google Cloud. We keep it simple and productive.

Own the full stack, help shape our product, and build pragmatic solutions for our current scale. I am looking for product-minded engineers who are focused on user experience and driven to understand the business.

I'm building a new cross-functional product team from scratch (engineering, product, design). Looking for a foundational engineer who can mentor, collaborate, and help define how we work together.

Remote-first, async, very few meetings. Real autonomy, real impact. Fair warning: being fully remote means no annual Halloween Heists.

While I don't have a formal job post up yet, if you're at that point where this feels like the right next step, I'd be happy to hear from you: careers@classcentral.com

JustWatch | Frontend Engineer (Junior–Mid) | Berlin | Full-time | HYBRID (2–3 days office, rest remote)

At JustWatch, we’re focus on being the best at marketing in the global entertainment industry. Our Martech team develops internal tools that help us achieve that goal, creating automations to help our own campaign managers inside the company.

You’ll work on our Business Dashboard (Next.js), leading projects end-to-end while collaborating with designers, stakeholders, and other dev teams. We’re looking for a frontend engineer who enjoys solving problems, thrives on collaboration and focus on bringing value to its users. In return, we offer a culture of trust and ownership, where you can make decisions without bureaucracy and really focus on the value you are delivering. Based in Berlin, we have an awesome office that you don’t need to go, but you will want to.

Our tech stack: Next, Typescript, Tailwind

https://www.justwatch.com/talent/jobs/tech/junior-mid-level-...

Justworks | Hybrid (US: New York City, Canada: Toronto) | Full-time | Multiple roles | https://justworks.com/careers

Justworks is helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. And, we are hiring across the board! If you’d like to work in a supportive and entrepreneurial environment, are interested in building something meaningful, and having fun while doing it, we’d love to hear from you!

- Engineering Manager: https://grnh.se/yzes4b8l1us

- Senior Software Engineer: https://grnh.se/lluz9tup1us

- Software Engineer: https://grnh.se/6q95fndp1us

- Engineering Manager, Infrastructure: https://grnh.se/qa3m2hxt1us

- Senior SRE: https://grnh.se/b6es9bfa1us

- Infrastructure Engineer: https://grnh.se/qadh1e1v1us

- Group Product Manager: https://grnh.se/3jlr8o3c1us

- Product Manager: https://grnh.se/1nkz4qef1us

Stealth Solar Tech Startup | Remote (EU-friendly) | Full-time or Contract

We are a well-funded stealth startup building a B2C platform to radically reform the U.S. residential solar industry. Our mission is to combat pervasive consumer distrust and inefficiencies by empowering homeowners with a transparent, high-fidelity, and interactive 3D solar design tool. We are a small, dedicated team working closely with an established industry partner for rapid, real-world testing and iteration.

We are looking for a Senior 2D/3D Computer Vision Engineer to build the core technology that makes our platform possible. The central challenge is to automatically generate clean, geometrically accurate, and simplified 3D roof models from raw aerial Digital Surface Models (DSM) and RGB data. Your work will be the foundation of our user experience, replacing the opaque and slow manual processes that dominate the solar industry today.

As the owner of this domain, you will ideally:

• Define the Process: Take charge of the entire ML pipeline, from R&D to production. This includes refining the annotation process and enhancing our existing Three.js-based 3D annotation tool to build a high-quality, large-scale dataset.

• Build the Models: Research, develop, and train a suite of models to handle roofprint segmentation, structured prediction of planar roof wireframes from point clouds, and detection/classification of roof obstructions (chimneys, pipes, windows, etc.).

• Ship to Production: Engineer a scalable and robust inference pipeline that can process new properties on demand.

Our stack is Python, PyTorch, FastAPI, Rasterio/GDAL, and JavaScript/Three.js for the annotation tool. We are looking for a pragmatic and experienced engineer who loves tackling complex 3D vision problems. You should be comfortable with both 2D and 3D data (especially point clouds and geospatial imagery) and have a proven track record of delivering end-to-end ML solutions.

To apply, please email vlad@design.solar.

CVector | Full Stack Software Engineer | USA | REMOTE | Full-time | $75k – $120/yr + 0.3% – 1%

CVector builds software to make energy systems smarter, more reliable, and autonomous. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps and backend systems, shaping tools that directly impact industrial operations and energy reliability.

Remote-first team with occasional domestic travel to connect with users directly. Recent graduates may need to relocate.

Full Stack Software Engineer: We're looking for a passionate Full Stack Software Engineer comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, TimescaleDB, PostgreSQL, AWS, FastAPI).

Reach out to me at jnapoli+hn@cvector.energy

Channel3 | NYC | $120–200K + 0.5–1.5% equity | Full-time

Channel3 is hiring a Founding Engineer to help us build a database of every product on the internet.

Our API lets any AI app or agent add shopping capabilities and earn commission on sales. As commerce moves from in-store, to online, to AI-native, this universal product catalog becomes critical infrastructure. We see Channel3 becoming as foundational to AI commerce as Stripe is to payments or Plaid is to fintech.

We just closed a $6M seed round led by Matrix (Apple, FedEx, AfterPay) with participation from Ludlow (Honey, StockX), Y Combinator, and Paul Graham. We're live with 500+ developers on our API and millions of products processed daily.

We're looking for engineers who want direct ownership of technical decisions, love solving hard problems at scale, and want to help build our team and culture from the ground up.

This role is in person, 5 days a week, in NYC. Unfortunately, we cannot sponsor visas.

Apply at https://www.ycombinator.com/companies/channel3/jobs/cWHfEPZ-...

iGent AI | Senior/Staff Engineers | London, UK (Hybrid, 3 days/week) | Full-time | https://igent.ai

Hi! Co-founder of iGent AI here. We build agentic systems for large-scale, industrial projects, and an agentic cloud.

Proof: our agent built a Redis-compatible database in Rust, with no human coding, in 70 man-hours – see https://www.igent.ai/insights/production-database-server

Why join:

* Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University

* Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod.

* Big Tech salary + options.

Open roles (all Senior/Staff; hands-on):

  • Full-Stack - design and build the new agentic interface, with top designer

  • Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability

  • Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events

  • LLM inference & post-training - long context tech, RL, vLLM, performance

  • Devrel & GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption

- 5+ years building and operating production systems (or exceptional evidence).

- Own 0→1 projects; comfortable reading & generating lots of code.

- Public work (OSS/papers/blogs/products) or strong portfolio.

Apply! https://www.igent.ai/join-us

PlantingSpace | Full-time | Remote (EU time zone) + Quarterly Meet-ups | https://planting.space

We’re building an AI system for analysts and scientists, based on a fundamentally new approach to reasoning and knowledge representation. Our approach differs from LLMs in that we compose algorithms symbolically to represent complex knowledge, and perform probabilistic computations. This enables the AI-driven application of statistical models to different problems, while providing the user with a verifiable reasoning path, and an assessment of the uncertainty in each answer. We are developing applications for analysis and research in domains such as Finance, Strategy Consulting, Engineering, Material Sciences, and more.

Ready to push the frontier of automated structured reasoning? Check out our current openings for:

* Program Synthesis Engineer

* Product Software Engineer

* Senior Product Manager

See detailed role info, and apply: https://planting.space/joinus/

Questions welcome! Get in touch: talent@planting.space

Polar Sky | Founding AI Lead | Bay Area/Seattle | Hybrid/Onsite | Full-time

We're a well-funded, pre-seed cybersecurity startup focused on data security. I'm looking for a founding AI lead with experience in fine-tuning LLMs (expertise around RL + reasoning models a big plus). This person would own the full AI stack from data to training to eval to test-time compute.

Who's a good fit:

* If you've always thought about starting a company, but for whatever reason (funding, life, idea), this is a great opportunity to be part of the founding team. We're 2 people right now.

* You enjoy understanding customer problems and their use cases, and then figuring out the best solution (sometimes technical, sometimes not) to their problems.

* You want to help figure out what a company looks like in this AI era.

* You enjoy teaching and sharing knowledge.

Questions, interest, just email jobs@polarsky.ai.

RevEng.AI | London, UK | Full-Time | ONSITE+PART REMOTE | https://reveng.ai

RevEng.AI is building foundational AI models to identify malicious threats and security vulnerabilities inside software. We're a seed stage startup having raised $4.25m from top tier VCs across the US and Europe. You’ll play a key role in advancing our platform pushing the boundaries of AI-driven program analysis.

We're looking to hire security engineers and security researchers with experience in program analysis, reverse engineering, vulnerability research, machine learning, and malware analysis.

* 5+ years of experience

* Masters or PhD in a relevant area for the security researcher role

* Hybrid working environment but ideally commutable to London, UK

* Solid understanding of software engineering design

* Ability to thrive in a fast-paced start-up environment

To apply or learn more, email contact[at]reveng.ai with "hn" in the subject line.

Freetrade | London (ONSITE) | Full-time | https://freetrade.io | £75k-£140k

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and maintaining reliable and trustworthy systems for trade execution, clearing and settlement, asset servicing, and internal operational tools. You will also play a key role in shaping our technical direction and mentoring other engineers as our team grows.

Tech we use: TypeScript, Node.js, Postgres, and GCP

Note: We are three days in the office, located just around the corner from Old Street. We don’t sponsor visas at the moment.

We are hiring across the board in engineering, data, people, marketing, risk & compliance and finance. See all of our opportunities here:

https://freetrade.io/careers

OpenRent | London, UK | Full-Time | ONSITE+PART REMOTE | https://www.openrent.co.uk

What sucked the last time you rented a house or flat? Come and fix it.

OpenRent is a force for good in an industry tarnished by rip-off agencies. Enabled by an unrelenting focus on technology, we now let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 7 million registered users, without ever charging any admin fees.

You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant.

We're VC backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market.

Roles currently available:

- Senior UX/UI Developer | Equity | 100k+ (based on experience) + quarterly bonus

All roles visible here: https://www.openrent.co.uk/jobs

*Maiven | Full-Stack Engineer & Energy Modeling Engineer | Remote (US) | Full-Time*

Maiven is the software platform automating home decarbonization. We’re a small, mission-driven team punching way above our weight: we have large utility customers, contracts in multiple states, and a growing pipeline of programs launching later this year. We’re venture backed and moving fast.

We’re hiring two engineers:

- *Full-Stack Engineer* – NestJS, React, Tailwind, TypeScript, Python, Postgres, AWS, Lambdas. Someone who cares deeply about UX and moving fast while delighting the user. - *Energy Modeling Engineer* – Python, pandas, AWS, modeling frameworks (ResStock, EnergyPlus, etc.). Experience with energy programs or building science is a huge plus.

Looking for builders who want real ownership, thrive in early-stage startups, and move with urgency and care.

More: https://www.askmaiven.com

To apply: email jac@askmaiven.com with a resume and your links.

*BLACKLANE IS HIRING!* (Berlin / Barcelona / London – HYBRID) https://www.blacklane.com/en/career/ped/

We are Blacklane, a global, premium chauffeur service company, operating in 50+ countries.

As part of our engineering teams, you will help develop the services that power the Blacklane, work on improving our back-office system, or solve problems around our products which allow business partners to integrate with the Blacklane platform.

We are looking for:

# Senior Software Engineer – Backend → Apply: https://grnh.se/3z4sljwi2us

# Software Engineer – Backend → Apply: https://grnh.se/lrj4si102us

Our stack includes Ruby, Go, TypeScript, and Java services (DDD) deployed on Kubernetes, communicating via SQS and Kafka. We use Postgres, MySQL, Elasticsearch, Redis, and DynamoDB, with AWS and Terraform for infrastructure.

Kaedim | Software Engineer, Machine Learning Engineer, Customer Support Engineer, Product Manager, Founding Recruiter | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games. Check out our demo here: https://www.youtube.com/watch?v=tlQWFG1DLb0

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS

DuckDuckGo | Multiple Roles | Remote | Full-time | $178.5k - $243,800 + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects.

Senior Site Reliability Engineer - $178,500 USD + equity — https://jobs.ashbyhq.com/duck-duck-go/9f845ea5-4bdd-432a-826...

Engineering Director, Windows - $243,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/42272bd1-c863-478d-827...

Engineering Director, Web Platform - $243,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/0541f1f3-4302-4b76-93a...

Senior Software Engineer, Windows Desktop App - $178,500 USD + equity — https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/abb953ee-5bb7-4637-9f6...

Senior Business Development Manager - $200,267 USD + equity https://jobs.ashbyhq.com/duck-duck-go/6a4caa8b-825c-44e3-be3...

https://duckduckgo.com/careers

Friendly Captcha | Data Engineer - Bot Protection | REMOTE within EU | PART-TIME or FULL-TIME | Office in Munich, Germany | https://friendlycaptcha.com

At Friendly Captcha we do one thing and we do it well: we protect websites from malicious actors and bots.

We provide privacy-friendly and accessible anti-bot solutions that don’t annoy users with tasks like clicking fire hydrants. We make the internet a bit better every day by winning over customers currently using Google reCAPTCHA.

We’re a growing, profitable, fully bootstrapped company. Our revenue mostly comes from medium to large European enterprise and governments.

We’re looking for an engineer whose focus will be on using data to improve our bot detection and protection. Telling apart bots from genuine users is vital to our product.

If possible, we prefer to keep things simple (perhaps boring is the right word even?) - choosing an if/else rule over a neural network. Good knowledge of the web is always useful in this company. At our scale we are looking for generalists more than specialists. The role is more about enabling for easy experimentation, data exploration and being creative in anti-bot approaches, than building the perfect ETL pipeline.

Our engineering team is fully remote across Europe, we meet up in person a few times per year. You can work either 4 or 5 days per week, fully remote or (partially) from our Munich office. Please note that we ONLY consider candidates located within the EU/UK/EEA/Switzerland.

Stack: Golang | Typescript | Clickhouse | Postgres | Redis | Python data science stack

Form with more information: https://friendlycaptcha.jobs.personio.com/job/2207852

Nova Credit | Remote (US, Canada)

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures

-> Hiring software engineers from Mid-Level to Staff

-> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS

You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Apply at https://jobs.lever.co/neednova/ and mention HN.

PostHog | Full-Time | Product engineers, developer who loves writing/marketing, Technical AEs | REMOTE (all remote) | Hiring GMT-8 to GMT+1

PostHog helps engineers build better products by combining product analytics, feature flags, session replay, a data warehouse, CDP and many more.

* we have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.

* we are growing through more autonomy and transparency not through process.

* we have a ton of scale and a bunch of super interesting technical problems to solve

* we're building 20 more products over the next couple of years, so you could end up building one of those

* we need: product engineers, developer who loves writing and a developer who can do marketing, sales ops backend engineer, clickhouse engineer, technical account executives and technical customer success managers.

posthog.com/careers

Coachcube | https://coachcube.ai | Mid to Senior ML Engineer and CV Engineer | Onsite London

Coachcube is new gym product providing a virtual PT service. We have an experienced senior leadership team and are building a hardware/software product using digital motors, camera vision and ML to design a next-generation weight-lifting product. If you like fitness and ML, reach out for a chat!

The ideal candidate:

  - Can ship quickly

  - Highly inquisitive but also motivated to deliver

  - Comfortable moving across domains

  - Understands fitness/weight lifting

  - Up for a challenge

email: hello@coachcube.ai

BCC | Platform Systems Engineers | Bethesda MD | ONSITE or REMOTE, VISA | Competitive compensation! | https://www.ncbi.nlm.nih.gov

Black Canyon Consulting (BCC) is hiring Platform Systems Engineers of all levels to join our team at the National Center for Biotechnology Information (NCBI). Our team is dedicated to building cutting-edge tools and systems. Our mission is to empower developers across NCBI to build, deploy, and manage software, data, and web services that make a real difference in the lives of millions of Americans.

Your contributions will play a crucial role in modernizing government technology infrastructure, fostering innovation, and ultimately making a tangible impact on communities across the country and globally. This is your chance to be part of a mission-driven team that’s shaping the future of digital government.

Tech: Linux, k8s, Service Mesh, Kafka, GitLab, ArgoCD, Elastic APM, Python, C++

DevEx Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/... Sr DevEx Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

DataOps Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/... Sr DataOps Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

Plaform Eng Manager: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

Elyos (https://elyos.ai) | London, UK | ONSITE | YC S23

Company: We're the UK's fastest growing AI voice company (~30% MoM) - very deeply focused on the trades industry right now (think your friendly neighbourhood plumbing company).

We're a small but experienced team hiring 3 more to join:

- Founding Engineer - Founding SDR - Founding Operations Lead (customer success)

Tech: GKE, python, postgres, telephony/media streaming, realtime LLMs, contextual eou detection, the occasional REST API.

https://careers.elyos.ai/ or message me - matt (at) elyos.ai

Mention bananas for extra kudos.

ChainSecurity | Blockchain Security Engineer | Full-time | INTERNS , HYBRID/REMOTE, Zurich, Switzerland | VISA possible | https://chainsecurity.com/

ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others. We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia.

A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system.

Your Responsibilities:

* Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products

* Contribute to our security tools and create new ones in collaboration with our internal research team

* Conduct security research and publish your findings

Requirements:

* Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code

* Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus

* Good knowledge of cryptography

* Proficiency with Linux and Git

* Good written communication skills

* Fluent in OOP programming language

Bonus Points:

* Formal Verification, White Box, Vulnerability Scanning

* Solid Blockchain Knowledge

* Consensus Algorithms

Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin...

Questions about the role? Contact: jobs@chainsecurity.com

FunnelStory | Principal Architect (Go / Golang) | REMOTE (India) | Bengaluru | Full-Time | 55-85 LPA | https://funnelstory.ai

I'm Preetam, co-founder and chief architect of FunnelStory. We're looking for a back-end engineer with a strong Go background to join our team.

FunnelStory is an AI-first customer superintelligence platform. We're a small (<20 people), fast-growing, VC-backed, early-stage startup, and we're gaining exciting traction with enterprise customers. We're looking for an architect/engineer for a team that's building next-generation AI platforms using Go.

This is a great fit if you have:

* Deep expertise in Go.

* A strong architectural background, with experience designing and scaling complex systems.

* Expertise with relational databases (PostgreSQL) and SQL

* Excitement about taking a high-impact, independent role in an early-stage environment, helping to mentor and uplift the team.

Who we're looking for:

* 8+ years experience in Go, SQL, AWS

* Bias to action, ability to execute independently

* Strong architectural and problem-solving skills

* Ability to communicate complex ideas simply

More details + apply: https://wellfound.com/l/2Bn5eQ

Interested? Email me at preetam @ funnelstory.ai with "HN" in the subject.

SwingVision is the AI tennis & pickleball app that provides automated stats, highlights, and line calling using just your phone. Our mission is to democratize the pro sports experience for all athletes.

Graphic designer role (San Mateo): https://swing.vision/careers/5d9b8dfb-bcec-4302-a017-6f83a64...

Undetect.io | Counter-Security / Reverse Engineer | Full Time / Part Time | Remote, Global

We're looking for a TypeScript engineer to join our team with a tight focus on stealth browser automation tools and RE / adversary intelligence pipelines.

You should have:

• Strong TypeScript, Node.js, CDP (Chrome Devtools Protocol) experience.

• Interest in C++ and Chromium internals.

• Experience evading or analyzing anti-bot and WAF systems.

• Practical experience reverse engineering & deobfuscation of heavily obfuscated / defended JavaScript.

• Intermediate / advanced understanding of browser fingerprinting and distributed proxy systems (or eagerness to learn).

• Able to provide examples of clean, maintainable code.

• Familiarity with Docker, Cloudflare Workers, and basic devops.

We're a lean, fast-moving team working on hard problems with real-world impact for enterprise clients, including many Y-Combinator success stories.

Email us: careers@undetect.io

ELI Beamlines (ELI ERIC) | Dolní Břežany (Prague), Czech Republic | Onsite (with HO) | Full‑time

We operate one of the world’s leading high‑power laser research facilities (up to 10 PW) and support an international user community. We’re hiring:

• Director for Technology Lead the Technology Division (laser beam transport, instrumentation, engineering services, control systems, data infrastructure). Set the technical roadmap, grow teams, and ensure reliability and integration across the facility. Apply: https://www.eli-beams.eu/careers/director-for-technology/

• SW Control Systems Developer Join the Controls Hardware Integration team. Build and maintain device control & data‑acquisition for lasers/beamlines (EPICS). Write IOCs/services in C/C++/Python, integrate hardware, and collaborate with scientists on Linux. Apply: https://www.eli-beams.eu/careers/sw-control-systems-develope...

• Web Developer for Data Visualization Build interactive tools and UIs that help researchers visualize experiment data and plan setups (from dashboards to 3D/WebGL). Work across Python backends & modern JS frontends; design clean APIs; familiarity with Jupyter/three.js/D3 a plus. Apply: https://www.eli-beams.eu/careers/web-developer-for-data-visu...

• Safety Systems Engineer (PLC / Interlocks) Own the PLC‑based Personal Safety Interlock (PSI): define state logic, supervise installation/upgrades with suppliers, commission new areas, and keep documentation, testing and availability tight. Apply: https://www.eli-beams.eu/careers/safety-systems-engineer-152...

How we hire: CV → HR pre‑screen → interviews (in‑person or Webex). Questions? Email HR: jana.zeniskova@eli-beams.eu Or me with technical ones vojtech.gaman@eli-beams.eu

About us: ~350 people from 38+ countries; easy public‑transport commute from Prague. Keywords: EPICS, Python, Linux, PLC/Safety, JavaScript/TypeScript, Git.

Composio | Senior Backend Engineers + Product Engineers (Frontend + SDKs) | Full-Time | In Office (SF and Bengaluru, India)

Hi HN, we’re building https://composio.dev — the fastest way for AI agents and developers to take action across apps like GitHub, Gmail, Slack, and more. Our SDKs (TypeScript + Python) and APIs let developers connect and execute tools in just a few lines of code.

We’re a small, fast-moving team obsessed with developer experience. Our stack is TypeScript-heavy: backend in TS/Go/Python, frontend in React/Next.js, SDKs in TS/Python. You’ll work across product and engineering to define APIs, craft abstractions, and ship features used by thousands of developers.

We’re early stage, small team and looking for engineers who want ownership and impact.

Feel free to reach out to me with your resume and links of your work: musthaq@composio.dev

April | https://www.tryapril.com | San Francisco /Gurgaon, India | ONSITE | Full-time

  Roles:
  1. Head of Growth (SF)
  2. Senior Software Engineer (Gurgaon, India)

Head of Growth - Own the 0→100K user journey. Build content-led growth across LinkedIn/X/TikTok, run viral B2C experiments, and craft our brand voice. We need a proven track record of growing consumer products, content creation chops, and unreasonable excitement about retention curves. Extremely competitive salary + equity + user milestone bonuses.

Senior Software Engineer - Build the core backend for our AI assistant. 2-6 years of experience, TypeScript/Python, with consumer product background preferred. Work directly with founders on architecture decisions. Must work from the office. Competitive salary + early equity + quarterly performance hikes.

If you're interested, send your profile to akash@tryapril.com

We are LIFEPOWR! Antwerp (Belgium) | Full-time | Remote (Europe) or hybrid (Antwerp) | https://www.lifepowr.io/en/about-us/career

A young and dynamic company, active in energy transition and scaling up!

We are looking for a OPS Application & AI Developer

Your role will be:

-Customizing and maintaining our ERP platform hosted on Odoo.sh

-Developing custom modules, integrating third-party tools, optimizing workflows

-Supporting our internal teams with technical solutions

Send your back-end development expertise and your understanding of Odoo.sh!

Make sure to send your resume, GitHub profile (if available), and examples of past Odoo customizations to david@lifepowr.io, including “OPS Application & AI Developer - Hacker news” in the subject line.

Base Power | Onsite | Austin | Full-time | https://www.basepowercompany.com/careers At Base we're rebuilding the nation's power grid. We build and manufacture power systems, deploy them across the grid, and build the algs, ingestion and commanding platforms that operate the fleet in response to real-time grid conditions. Our team is made up of engineers from top infrastructure and energy companies (Apple, Anduril, Starlink, etc) and we have several years of runway from top firms (a16z, Valor, Thrive, Addition). We are looking for: - platform engineers - firmware & controls engineers - embedded software engineers

Sampling of exciting upcoming problems include: - Home load prediction algorithms - Resilient factory execution software platform - Automated hardware-in-the-loop (HIL) test system

fleming.de | Full Stack Engineer | Magdeburg, Berlin, Hybrid (Germany) | Full Time | German required

Fleming (www.fleming.de) is digitalizing financing for health professionals. We are building and maintaining a React-Native / Nestjs based bank account frontend and a Salesforce base loan sales platform with a Ruby on Rails frontend. We are looking for a well-rounded engineer. You don't have to know the technologies we are using if you bring the conceptual knowledge and the drive to learn.

Some German language knowledge is required since you are going to build German UIs

more info: https://fleming.de/jobs/

Contact jobs@fleming.de

Come build the data platform of tomorrow!

Company: Galaxy - The Cursor for SQL | NYC (IRL) | Full-time | Roles: Founding AI Engineer, Founding Front-end Engineer | Founding Full-Stack Developer

https://www.getgalaxy.io

We’re building Galaxy, a next-generation SQL workspace that serves as the foundation for the data platform of tomorrow. Today it’s a lightning-fast, elegant query client — soon expanding into orchestration, reporting, and proactive intelligence so every team (not just engineering) can trust and act on data. We’re hiring early engineers in NYC to help shape this future.

Email us at hello@getgalaxy.io or hit us on Linkedin:

https://www.linkedin.com/in/garrettawolfe https://www.linkedin.com/in/mitchbregs https://www.linkedin.com/in/leonkozlowski

Zetier | Multiple US locations (VA, PA, FL, TX, CA, NY) | ONSITE | Full-Time

Zetier develops real-world tools and capabilities to secure our nation in the short- and long-term. If you’re excited to delve deep into low-level systems, exploit dev, and more alongside a group of passionate hackers, then we’d love to hear from you.

Open-sourcing our work as much as possible is integral to Zetier and what we stand for. As folks who learned to hack on platforms like Linux, we aim to give back to the OSS community. Not only do we encourage our engineers to contribute, but we go a step further, adding monetary incentives to do so.

We’re looking to find the right people for a range of roles, including:

+ Vulnerability Researcher

+ Android Security Engineer

+ CNO Embedded Engineer

+ CNO Software Engineer

+ IT Security Engineer

+ Senior Technical Lead

+ Business Developer

All open positions: https://zetier.breezy.hr/

Our approach and benefits: https://zetier.com/careers/

Different skill set? Drop us a line at hello@zetier.com

Upway | Paris (Hybrid) | CTO & Software & Data Engineers | Full-time

Upway is the leading marketplace for refurbished e-bikes across Europe and the United States. In the last 3 years, we went from 0 to $200M GMV with a small senior team of 5 engineers and have been growing the tech team since the beginning of year.

We are looking for business driven problem solvers that will help us scale to $1B+ GMV in the coming years.

Stack: TypeScript | NestJS | React | Shopify | PostgresSQL | GCP

Offers: https://careers.upway.shop/

ScribbleVet (https://scribblevet.com) | Full-stack, former technical founders | Full-time | Remote (must be able to work US timezones)

ScribbleVet is an AI-powered scribe for veterinarians. We save veterinarians two hours every day, reduce veterinary burnout and help animals get better care.

* We're generating real ($XM/yr) revenue

* Our users love the product

* We're fully remote but not asynchronous, so we have a lot of autonomy but it's easy to collaborate with someone when needed.

We're looking for:

* Senior engineers (former founders or early startup experience strongly preferred) who can work across the stack.

* Engineers with a product mindset. Customer-centricity or design skills are a plus.

Our tech stack: Postgres, Elixir (+ Ash framework), React Native/Expo, React/Nextjs

We’ve found that the engineers who are happy and successful at Scribble really enjoy technology (learning new frameworks, experimenting with cutting-edge platforms) and are very product-oriented.

If you're interested in building AI-driven features that help vets and the animals they care for, check us out here: https://excessive-grey-9af.notion.site/Senior-Full-Stack-Fro...

yeet | Chicago, IL / Remote | Full-Time

Building a dynamic runtime on top of the Linux BPF sub-system. Looking for extremely talented / passionate Rust developers / Product Managers with a deep interest in Linux internals, Dev Tools, Great Developer Experiences and Systems programming. Experience writing highly-concurrent, performant multi-threaded Rust is a must. Feel free to tell us all about your favorite GNU core utilities / Linux system calls / kernel sub-systems at:

work [at] yeet.cx

You can visit us at https://yeet.cx/

Or try our interactive sandbox at https://yeet.cx/play

EAGL | Ghent, Belgium | Onsite | Full-Time

EAGL is a fintech startup that unifies controlling and accounting with AI-powered agents that automate close processes, flag anomalies, and clean P&L so finance teams can focus on strategy, not spreadsheets.

https://www.geteagl.com info@geteagl.com

We're looking for full-stack (Frontend, Backend, AI) profiles that want to dive into the fintech world. Node, react, postgres, ...

Terrace Networks | Security Data Systems Engineer | REMOTE (US) | https://www.terracenetworks.com

We’re hiring engineers to build the next generation of large-scale network threat intelligence. Our distributed vantage point is one of the world’s most diverse, and we’re using AI to make sense of global attack data in real time.

I’m Eric, co-founder and CEO. Our founding team includes researchers with decades of security experience and multiple successful startup exits.

We’re looking for full-time engineers who thrive at the intersection of systems, security, and machine learning. Ideal candidates bring a strong background in systems engineering, familiarity with modern ML for text/log analysis, and interest in automated response systems (e.g. LLM-based agents for classification, triage, response). Proven success working remotely is a plus.

We've recently closed our seed round; pay+equity will be based on experience and fit.

*Tech:* Go, Linux, TCP/IP internals, Terraform, DynamoDB, LLMs (Claude, etc.)

Apply here → https://www.terracenetworks.com/careers

CredCore | Engineering | Full-time | US/India | www.credcore.com

CredCore helps companies analyze Credit Agreements using AI. We are looking to hire an Engineering Lead with 10+ years of experience. You should be familiar with design patterns and software architecture, infra/kubernetes, and TypeScript/Python. If you’re interested, please reach out to us at careers@credcore.com.

A cover letter is not necessary. But please share your resume and links to your GitHub/GitLab/StackOverflow/other profile, or blog/papers, or other portfolio we can review before setting up the interviews.

Stitch Fix | Data Platform Engineer | Full-time | Remote (though we do have an office in San Francisco) | https://www.stitchfix.com/careers/jobs

I'm the hiring manager for two roles on our Data Platform team at Stitch Fix, one at the lead level, one at the principal level. Here's the blurb from our job postings, but feel free to reach out to me directly if you have any questions! jim.kubicek AT stitchfix.com

> The Data Platform team builds the foundation that powers everything from Stitch Fix's signature personalization to our most cutting-edge AI innovations. We exist to make our data scientists and engineers wildly productive - by delivering fast, flexible, and trusted infrastructure that fuels experimentation, recommendations, insights, and a new generation of AI/ML-powered experiences.

* https://www.stitchfix.com/careers/jobs?gh_jid=6819981&gh_jid...

* https://www.stitchfix.com/careers/jobs?gh_jid=6750033&gh_jid...

Roundtable | https://roundtable.ai | On-site San Francisco, CA | Full-time

Roundtable is a research and deployment company building the proof-of-human layer in digital identity. Roundtable seeks to research and build real-world Turing Tests, and to productize these developments in bot detection, fraud prevention, and continuous authentication.

We're hiring a Member of Technical Staff. This is not a typical “Founding Engineer” position. In particular, this role will involve more research than similar positions. You should be prepared to spend around half of your time on research and half on engineering.

The ideal candidate has experience in both. However, we don’t strictly require research experience as long as you have a strong quantitative background and an eagerness to learn. We do require proficiency in both web development (Javascript, Node.js) and Python.

If you're interested shoot an email to matt@roundtable.ai with your resume and a short blurb on why you're interested (note: we are unable to offer visa sponsorship at this time).

Fold | Remote (US Only) | Senior Frontend Engineer, Senior Design Engineer, Lead QA Engineer | Full-time

Fold makes Bitcoin easy through great UX and rewards. We’re building the future of Bitcoin payments and need senior engineers to help us scale.

---

Senior Frontend Engineer – Work on our React Native apps, ship features and own architecture. • 5+ years exp, React Native, TypeScript, Expo • Bonus: Fold user, passion for Bitcoin

Senior Design Engineer – Build and scale our design system in React Native. • Strong in React Native, TypeScript, modern component libraries • Bonus: Storybook, Framer Motion, design system expertise

Lead QA Engineer – Own automation, quality strategy, and mobile release confidence. • 5+ years in QA, 2+ leading QA or owning strategy • Experience with iOs and Android automation, Maestro/Detox/Appium

Perks: competitive salary + equity, 401k match, unlimited PTO, full benefits, yearly vacation stipend, no Monday meetings, Bitcoin starter pack.

Email tiffany.sawhney (a) foldapp.com or apply here: https://ats.rippling.com/fold-inc/jobs

More: https://foldapp.com

Rayni (https://www.rayni.ai) | Chicago - Hybrid or Remote | Full-time | Founding Full Stack Engineer

Mission: We accelerate scientific discovery. We are starting with helping scientists operate their instruments (like Mass Spectrometers) faster with our Gen AI-powered platform.

Impact: We help scientists develop new drugs faster, analyze diseased blood samples faster, study brain cancer faster, etc.

Funding (> $1.5M): Funded by tier-1 VCs, including winning the biggest academic accelerator program on the planet - New Venture Challenge at the University of Chicago. Past winners include Venmo and Grubhub, among others, over the last 25+ years.

Who are we hiring: 3+ YOE in full-stack engineering with a frontend focus (80%) and backend (20%).

You will: - Make fundamental decisions about the frontend stack and product vision - Work with scientists to convert their needs into features. - Long term: Help build the product engineering team, lead and mentor new engineers - Long term: Scale the product to millions of users

Complete job post: https://rayni.notion.site/Founding-Full-Stack-Engineer-2412a... More about the company, culture, and benefits: https://rayni.notion.site/Rayni-Careers-2312a8a0f8fe803ab5bb... Founding Story: https://polsky.uchicago.edu/2025/07/02/how-rayni-turned-scie...

Foxglove | Onsite or Remote | Full Time or Contract | https://foxglove.dev/

Foxglove is observability for robotics and physical AI. We accelerate robotics developers with logging, data management, and multimodal visualization. We're well funded (Series A, ~40 people) and assembling the most talented team in the industry to build a platform for all robots. Sound interesting? Join us!

Hiring across a number of roles, in San Francisco and some remote.

- Senior/Staff Frontend Engineer (typescript, react, webgl, rust, wasm)

- Senior/Staff Backend Engineer (rust)

- Senior/Staff Backend Engineer (rust, remote - Australia/NZ time zone)

- Senior/Staff Product Engineer (full stack typescript)

- Account Executive

- Forward-Deployed Engineer, Frontend

- Forward-Deployed Engineer, Backend

- Solutions Engineer, Robotics

- Dev Relations, Physical AI

Bonus points if you have prior experience at a top AV or robotics company.

*Remote friendly*: All roles are open to remote for experienced candidates (staff-level or prior experience at a top AV or robotics company)

Customer-facing roles outside of SF are remote but we are looking for candidates in those cities who can travel to customer sites.

https://foxglove.dev/careers

Charge Robotics | Mechanical Engineer | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

eventfirst | Senior Full-Stack Engineer | Berlin, Germany | REMOTE (CET) | Full-time

We are applying AI to organize corporate events.

We are looking for a senior engineer with at least five years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture.

Apply here: https://taskwise.jobs.personio.com/job/1646275

Kredit | .NET Engineer Roles | Remote (US) | Full-time Kredit (trykredit.com) is on a mission to resolve debt better. We provide tools to regular people to help them get the out of financial hardship, as well as provide tools for businesses to manage their processes. We are small (6 person dev team) and growing. Our stack: .NET Core, C#, PostgreSQL, Mediatr, CQRS, Events, Angular, GCP, Kubernetes, Terraform and much more.

We are a Event/CQRS stack and are looking for Engineers that fit that experience in this area.

If this sounds interesting to you, please reach out to recruiting@trykredit.com

Nebula | Multiple roles | Remote/Onsite NYC preferred | Full-time

Nebula is building a modular blockchain stack to make on-chain finance faster, fairer, and more efficient than off-chain. The stack has 3 parts:

1. Execution environment – combines Rust + Sovereign SDK for highly performant, expressive private apps (e.g. solving latency asymmetry in exchanges). 2. Privacy protocol – blends cryptography + privacy hardware for verifiable, fast programmable privacy. 3. Nebula Exchange – a hyper-performant exchange using batch auctions + private orders to eliminate latency asymmetry and guarantee best prices. We’re hiring ambitious engineers to join the core team:

- Frontend (React/TS/Next.js) – focus on architecture, design systems, interactivity, realtime apps, Figma → production.

- Backend (Rust/Go) – core infra + SDK integration.

Requirements: detail-obsessed, independent problem solver, thrives in chaos, good communicator, can work ET hours. Nice to have: exp. in financial exchanges, realtime data-heavy apps, web3. Note: workload can be intense (sometimes 80+ hrs/wk).

If this challenge excites you, send CV → nebulaexchangejobs@gmail.com

CreativeMode (S24) | https://creativemode.net | On-site - San Francisco, CA

CreativeMode is building Lovable for video game mods, starting with Minecraft. In our first three months, we built the most powerful no-code modding platform ever for Minecraft and created a double digit percentage of all mods ever released. We're building an entirely new category of gaming tools. Minecraft is only the beginning.

We're hiring a Founding Engineer who wants to build at the intersection of tech and gaming. Ideal candidates have a passion for the category and have experience building production-level LLM/AI applications or are killer full-stack engineers who can own product features end to end.

Ideally 3+ years of experience

Email me at wilson@creativemode.net with your resume and a short blurb on why you'd like to join the team.

Braden Health | Boise (ONSITE) | Full-time

We are writing and maintaining health software for rural hospitals in Tennessee and Virginia. Small team, products in active development.

We are looking for a full stack developer, comfortable in backend and frontend.

Tech we use: C#, ASP.NET, TypeScript, React, Sql Server. Nice to have: knowledge of HL7, general familiarity with how hospitals work

Email resume to chris.brandsma@bradenhealth.com

Fundamental Research Labs | Fullstack, Product, + Software Engineers, Ex-founders, Researchers | Menlo Park, CA | https://fundamentalresearchlabs.com

We're an applied research company building autonomous, collaborative, and socially intelligent agents. Our small team includes computational neuroscientists, AI researchers, engineers, and builders from MIT EECS, Stanford NLP Group, Google X, Citadel, and beyond.

Our latest product, tryshortcut.ai, just launched over the summer to amazing reception and we’re just getting started.

We compensate well above market and provide generous equity.

We’re looking for:

—> Engineers and ex-founders to build Agent-first products. We have an organizational structure where product leaders are given great autonomy to experiment and ship fast.

—> Researchers to develop frontier technologies in the Agents domain. We do everything from sophisticated Agent orchestration to SFT/RL post-training of foundation models.

https://jobs.ashbyhq.com/fundamentalresearchlabs

Full Time and Part Time roles Distark is hiring, an edutainment brand building learning videos for Education. Our small, passionate team creates animated shows and learning tools that help kids (ages 3-9) fall in love with curiosity and real-world learning. We use custom automation to speed up everything from story writing to animation. See what we’re making: https://www.youtube.com/watch?v=c46VaM_VZGU

Open Roles (REMOTE, non US):

Animators (2D/3D or hybrid—experience with AI tools a plus)

Junior Software Developers (Python, Node, JS, or open to learning new tech)

Interns (all backgrounds, generalists, tech, or creative)

We are also looking for writers (different kind of hacking)

Important: You must be a parent (of any age child) We want people who care deeply about kids and learning. Lived experience as a parent is essential—our mission is to build things real families want.

Why join us?

Fully remote, async-friendly Ship real things that impact how kids learn Fast, creative, zero-corporate-BS environment

Direct access to founders; real ownership

Opportunity to shape our tools and shows from the ground up

To apply: Email jobs [at] studyturtle.com with your background, a few sentences about your kids, and why this mission excites you. Please include links to any relevant work.

We are the hiring company and will reply to all genuine applicants. No recruiters, no agencies, please.

Shorebird | Mid-Senior across Web, Dart, Full Stack or C++ | Remote (North America) | Full-time | $150-230k + equity | https://shorebird.dev

Flutter/Shorebird founder here. Flutter is used by millions of devs (and nearly ⅓ of free apps submitted to AppStore), but is missing services for businesses. We sell Flutter-related Saas to 1000s businesses globally, on track to profitability early 2026. Need your help to build more products for Flutter developers.

We’re a small, senior team, making something people want. Tech: Dart, GCP, Cloudflare, React, C++. Shorebird operates almost entirely in the public over Discord. https://discord.gg/shorebird

https://shorebird.dev/jobs

Pex - part of Vobile Group | US | Full-time [1]

We serve everyone who uses the Internet to view, share, or create content - from the largest platforms and rightsholders, to independent creators. Pex automated content recognition technology identifies uses that other tools can’t detect, including modified audio with speed, pitch, tempo, language, and other distortions.

We are hiring for the Senior Site Reliability Engineer (on-site, Gainesville, FL) [2]

We offer:

    - Generous pay range based on skills and experience
    - Unlimited PTO + 10 paid holidays
    - Medical, dental, and vision insurance with FSA options, 401(k) plan
    - A supportive culture and excellent work-life balance

—

    [1] https://pex.com/
    [2] https://pex.com/senior-site-reliability-engineer-07-2025/

ClickHouse | Senior Software Engineer - Distributed Systems / Cloud Data Infrastructure / Kubernetes | Remote

(US preferred right now, EU is technically fine but I'm looking to ramp up in US atm)

ClickHouse is a popular, Open-Source OLAP Database. We are ClickHouse Inc, the company behind the database aiming to build the best in class real time data warehouse.

What we are looking for:

Distributed Systems / Cloud Engineers to build the AutoScaling Systems for a Cloud Database.

We also maintain our own ClickHouse-based Data Infrastructure. Bonus points if you've worked on auto-scaling or other data-driven forecasting challenges in the past.

    Can work in an early stage startup environment. Proactive and hands on.

    You must be independent and self-organised.

    Good at Go, Kubernetes (Understanding how to manage stateful services in a multi-cloud environment)

    We have a Python service in our Recommendation pipeline, so some ML/Data Science knowledge would be good.

    SQL / ClickHouse SQL (goes without saying)

    You'll need to be able to do On-Call - debugging production infra or db issues

    If you can do low-level database programming (C++, ClickHouse) that's added bonus.

Send me an email: manish.gill [at] clickhouse [dot] com

[0] https://www.youtube.com/watch?v=AFoMsLMZKik [1] https://www.youtube.com/watch?v=ufY_JFPpzRI

PS: If you're a pure DevOps person or a pure Data Engineer who wrangles data tools, please consider the above requirements before firing off an email. This role is an intersection of a lot of sub-roles, not a particular specialization.

Charlie Labs | Remote (Global) | Full-time | TypeScript code agent

We’re building an AI teammate that fixes bugs, writes features, and reviews PRs asynchronously. Small team, big surface area.

Open roles

Full-Stack Product Engineer (TS/React, Next.js, design-system chops)

Backend Engineer (event/queue systems, GCP, BigQuery, observability)

AI Engineer (LLM agents, eval-driven iteration, tool use, reliability)

Developer Relations (TypeScript demos, fun stuff, talks, OSS)

Our stack TypeScript across the stack - GCP (Cloud Run, Pub/Sub, BigQuery, IAM, Secrets)

Why Charlie? Tiny team → outsized ownership and velocity Remote-first, async-native; few meetings, lots of shipping Real runway (seed $10M) and meaningful equity

Email hello@charlielabs.ai with your GitHub + LinkedIn (or resume)- https://charlielabs.ai/careers

VeritusAgent | https://www.veritusagent.ai | Full Stack Software Engineer | Hybrid - San Francisco | Full-time | $200k + 0.5% - 1%

We started two months ago and our AI agents are already live and making calls! We're scaling fast and hiring a full stack engineer to join our team in-person in SF

https://www.ycombinator.com/companies/veritus-agent/jobs/cvH...

Reach out to me directly!

Rinse | IT Manager / Network Administrator / System Administrator | Hybrid in SF Bay Area, Los Angeles, New York (Brooklyn), Boston, Chicago, Seattle, Washington DC, or Newark. (Primarily remote with some on-site responsibilities.) | Full-time | https://www.rinse.com

Rinse provides dry cleaning and laundry delivery services to customers in eleven metropolitan areas in the US. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company.

Given our distributed nature, we have growing network and workstation infrastructure, and it's time to hire our first full-time leader to manage this system. The ideal candidate can:

- Operate with autonomy and integrity across network, server, infrastructure, and desktop environments

- Communicate cross-functionally, to internal stakeholders at all levels

- Navigate our (primarily Linux) technical environment

- Spearhead projects to improve our technology's security, reliability, and functionality

- Facilitate our corporate efficiency via desktop administration

Because this role has some physical hardware responsibilities, we'd prefer it be filled by someone in the above localities, even though the vast majority of the role can be performed remotely.

We're open to both newly-graduated or more senior technically-minded individuals and managers, provided they meet our bar.

Search term bingo: Logistics, Linux, Python, Ansible, Systems Administration, Network Administration, Information Technology, Amazon Web Services, AWS, Cloudflare, Automation, Security, Systems Engineer.

https://www.rinse.com/careers/it-associate/

https://www.rinse.com/careers/it-manager/

Greenline | Founding Engineer Roles | Remote (U.S. only) | https://www.greenline.ai/careers

Greenline unlocks mortgage lending for self-employed borrowers.

We just closed our seed round led by Bowery Capital and Uncork to tackle this messy problem. More importantly, we're launching with the largest lenders and investors in the mortgage-backed securities market.

We're growing our founding team:

- product/ full stack engineer: own and accelerate customer-facing feature development

- backend: lead core, data-centric systems and infrastructure

- platform/ API: architect and build a public-facing ergonomic API for scalable integrations with enterprise systems, critical to unlocking key customers and partner-driven growth.

Checkly | Multiple Roles | REMOTE (UTC +3 to UTC -3) | Full time | https://www.checklyhq.com/

Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

-Senior/Staff UX Designer

-Senior Backend Engineer

-Staff Product Manager

-Senior Product Marketing Manager

See the full descriptions and apply here (and mention HN): https://jobs.ashbyhq.com/checkly?utm_source=hn

Sourcetable.com | Product Marketing (contract) | San Francisco We're building a spreadsheet-based operating system for the web, although on first touch Sourcetable feels more like Excel Copilot or "Cursor for spreadsheets".

We're looking for one Product Marketer to join our team in a part-time contract capacity in the Bay Area (San Francisco preferred). The requirement are that you need to be great at video storytelling and also be strong at spreadsheets & analysis.

Everyone on our team codes, and you should too. There's no technical requirement for the role, per-se, but we have found it is better this way.

Email me if this sounds interesting.

ARound (web-based augmented reality for sports) https://aroundar.com - a Stagwell company - https://www.stagwellglobal.com | Backend Engineer | Remote (Based in UTC -8/-7/-6/-5/-4 timezones only) | 20-40 hours a week TBD | Contract or contract-to-hire

Backend development in support of web-based augmented reality experiences and games for mobile devices. API integration and development. Management of cloud infrastructure and services.

Key technologies are Node.js, Rust, PostgreSQL, Digital Ocean. Experience with video streaming (RTMP, WebRTC). Some degree of familiarity with TypeScript, Vue.js, and Babylon.js is desirable.

Strong interest in sports is ideal (although fandom is optional).

I’m the hiring manager, no intermediaries. I’m not interested in hearing from outsourcing agencies or recruiters. Candidates only, please. Thank you. : )

raven@aroundar.com

Retirable | https://retirable.com | Senior Engineer | NYC, hybrid onsite (Flatiron)

Looking for a product-driven engineer with Rails/React experience to help us bring retirement planning to everyday Americans. We just raised a series A and are building our team for the next phase of growth. Our stack is React/Typescript/GraphQL and Rails built with event sourcing, DDD and CQRS.

https://wellfound.com/jobs/3322815-senior-software-engineer-...

Loop | loop.com | Engineering, Product | On-site San Francisco, CA, Chicago, IL

Loop is on a mission to unlock profits trapped in the supply chain (https://www.loop.com/article/unlock-profit-trapped-in-your-s...) and lower costs for consumers. Bad data and inefficient workflows create friction that limits working capital and raises costs for every supply chain stakeholder.

Loop’s modern transportation cost management platform uses our domain-driven AI to harness the complexity of supply chain data and documentation. We improve transportation spend visibility so companies can control their costs and power profit. That is why industry leaders like Nvidia, Verizon, Dell, J.P. Morgan Chase, ABB, Estee Lauder, Tyson Foods, Yeti and Olipop, work with Loop.

1. Raised $100m+ from JPM GEP, Founders Fund, 8VC, Susa Ventures, Flexport, Index.

2. 250+ paying enterprise customers with multiple-year contracts.

3. High-caliber team of engineers and operators from Google, Scale AI, Flexport, Uber, Rakuten, Square, Meta, Stanford, Brown, Princeton, and Yale.

Fullstack Engineer San Francisco - https://job-boards.greenhouse.io/loop/jobs/4102236004

Fullstack Engineer Chicago - https://job-boards.greenhouse.io/loop/jobs/4830548004

AI Engineer San Francisco - https://job-boards.greenhouse.io/loop/jobs/5391540004

Product Manager, San Francisco - https://job-boards.greenhouse.io/loop/jobs/5602148004

Engineering Director, San Francisco - https://job-boards.greenhouse.io/loop/jobs/5597686004

Other roles at https://www.loop.com/company/careers

Deep Film inc. — SF, CA (Hybrid → Onsite) Senior Founding Engineer (AI/ML)

You’re here to reshape the film industry with AI. At Deep Film Inc., you’ll take multimodal diffusion and transformer models from research to production—mastering quantization and pruning to make them leaner and faster. Your CI/CD pipelines and MLflow integrations won’t just keep us running they’ll redefine how stories are told. You’ll scale training across GPU clusters with Horovod and Optuna and build resilient data pipelines with Kafka, tf.data, or whatever it takes to get the job done.

You’ll join with founding-level equity and access to state-of-the-art hardware. Optional relocation to California will be available post-launch in January 2026.

Why You? You thrive on hard problems, are obsessed with deep learning, and see AI as a way to transform storytelling. Whether you’re a seasoned expert or emerging talent, show us your impact: a GitHub repo with production grade systems, optimized ML models, or a demo that leaves us speechless.

Send us a 3-sentence pitch explaining: 1 Your passion for AI and storytelling 2 Your standout achievements 3 How you’ll shape our platform Include proof of work No résumés. No cover letter fluff.

We move fast—expect a reply within 12 hours.

hello@deepfilm.ai

Curious why some of these posts are downgraded? Is that to be considered a rating of the company? Dislike for the advert because it misses some details expected? Etc

Would be good if the downgraders left a comment explaining.

Note: I am not a job poster and not affiliated with any hiring posts here

Goody | Remote | $200–250K + equity and benefits | Full-time

Goody is hiring a full-stack Staff Software Engineer who likes to ship at a startup pace and has an eye for exceptional UI/UX.

I'm Mark, the technical co-founder and CTO at Goody. Despite being something everyone does, gifting is one of the areas of commerce yet to be disrupted. Our goal is to make people's days by making gifting easy, while building a sustainable business on that market opportunity.

We're looking for engineers who like to build at a startup pace, have a critical eye for detail and user experience, and thrive when given autonomy and ownership.

Our product is used by Google, Stripe, Anthropic, Meta, NBCUniversal, Notion, and others, and we also offer a developer API for commerce.

Check out our jobs minisite at https://jobs.ongoody.com/swe and feel free to email me at mark@ongoody.com.

Master Works / Nabeh | Hyderabad, India | Onsite | Full-time

We are a pure AI products company (computer vision, LLM, STT) with multiple AI platforms deployed at major clients across government, aviation, and smart city sectors. We’re expanding our Hyderabad engineering office and hiring for multiple positions:

    - Full Stack Developers (React, Node, TypeScript)
    - Computer Vision Engineers
    - LLM Engineers
    - QA Testing Engineers

If you love building, shipping, and working on products that push AI forward — this is your playground.

DM me on X (Twitter) https://x.com/arhmnsh with your CV, portfolio, and why you’d be a good fit.

Synca | Stockholm (EU Remote ok) | Senior Frontend Engineer | Full-time | Salary + Equity

We're looking for a talented Frontend Engineer to help build the future of business intelligence.

Synca uses AI to determine who in an organization needs to know what, and allows them to take immediate action. With the flood of information in todays age, people don't know what they need to know. We fill this gap and empower everyone to be experts in their domain.

We raised funds from and landed a strategic partnership with a leading consultancy in Europe's AI capital and are looking for someone to join us in our journey to the next level.

Please apply at https://wellfound.com/l/2BAFNX

We look forward to hearing from you!

https://www.synca.ai/

zoetro.pe | Technical Staff | San Francisco, CA | ONSITE/REMOTE | Full-time

We're an applied lab building deterministic and deep generative experiences. Our team has built AI models, games, and infrastucture at Tesla Autopilot, Epic Games, Scale.ai, Repl.it, Bun, and Lucasarts.

You will be building procedural simulation models and the supporting infrastructure and applications. We're a small team, so this means everything from CUDA kernels and Pytorch notebooks to web-apps. Our stack is multi-lingual and spans from very low to very high level code. We use both our own models and external providers.

Our team is hybrid-remote, being primarily based in San Francisco.

Our stack: Python (Pytorch/jax), Typescript(React etc), Rust/C++, Ghidra

We're looking for exceptional research engineers who aren't afraid to get their hands dirty. Experience with computational geometry or compilers/language design/formal methods is a plus.

Formal qualifications are less important than passion and skill. We're building our dreams, we hope you will feel the same.

If interested, email me at: simon+hn@zoetro.pe

Neon Health | AI agents in healthcare | Hiring Eng and BizOps | SF, Remote (North America)

* Senior Backend Engineer | SF, Remote (North America) | Full-time | $170-225K + equity

* Growth chief of staff | SF | Full time | $125K–$195K + equity

* Applied AI Systems Engineer | SF, Remote (North America) | Full-time | $120-180K + equity

We’re mission-driven capitalists: making life-saving drugs more accessible, and building a $200B+ company—on the scale of Palantir or ServiceNow—serving the largest healthcare enterprises.

Traction: profitable and growing fast. Selling 7+ figure contracts to enterprise healthcare customers.

Team: built by exited founders, YC & MIT alum, ex-Tesla, ex-Google engineers.

Top investors: funded by elite Silicon Valley VCs who've backed unicorns like DoorDash, Lyft, and Mammoth Biosciences. And strategic healthcare investors with deep industry connections.

Outsized impact & opportunity: work at the intersection of agentic AI, healthcare transformation, and life-changing patient outcomes.

If you want to work on a team of A-player athletes, doing the best work of your career, and helping get life-saving drugs to the people who need them, apply here: https://jobs.ashbyhq.com/neon-health (and make sure to mention HN!)

Citymapper by Via | London, UK | Onsite or Hybrid (London, UK and New York, USA) | VISA

We are building the ultimate technology for mobility in cities. We are hiring

- Engineering Manager (London): https://job-boards.greenhouse.io/via/jobs/8001882002 - Director of Engineering (London): https://job-boards.greenhouse.io/via/jobs/8074378002

More roles at https://job-boards.greenhouse.io/via

Backend tech stack includes: AWS, Python, some C++, some Rust, EKS, Terraform.

Stack Auth (S24) | San Francisco, CA | Full-time

Hiring founding & design engineers!

We're building the customer platform for developers — think of a single service that does auth, payments, analytics, marketing emails, and so much more. We're selling to developers & startups so our audience is right here on this website!

If you're in San Francisco and frequent Hacker News, that's enough of a reason to DM me on Twitter @konstiwohlwend. Would love to invite you over for a coffee at our hacker house!

If you apply, please send me a few recent HN threads that you enjoyed :)

konsti@stack-auth.com | https://stack-auth.com

sketch.dev | engineer | onsite (SF) two days a week | Full-Time | $200,000 + generous equity

We are expanding the hosted side of our product and are looking for people who enjoy "cloud" infrastructure, have a strong product instinct for technical users (i.e. you really want to build a product you actually want to use), and like to ship.

Please email me if that sounds interesting.

Continua AI | https://continua.ai | Multiple Roles | ONSITE (NYC/Seattle) | Full-time | Salary + Equity

At Continua (http://continua.ai/), we're on our way to solving Social AI, and we're expanding our team! We've built an AI agent that users can invite into group conversations to make planning, coordination, and information retrieval effortless. We're social creatures and it just seemed to us a huge opportunity to bring AI into group settings. We've seen strong retention over the last few months and want you to help us bring our product to the next level. Try adding our agent at http://continua.ai/ to group chats and kick the tires!

I’m David (https://www.linkedin.com/in/dpetrou/), the founder and CEO. Before starting Continua, I was a Distinguished Software Engineer at Google. We’re backed by top-tier VCs and incredible angel investors. Our team is a fantastic bunch (http://continua.ai/team) of accomplished engineers and researchers from Google, Slack, Disney, and several AI startups. We're pretty clued in on the technology side and have a strong vision of how the transformative technology of the last few years along with our own secret sauce (not just a ChatGPT wrapper) can help a huge number of people.

We’re hiring a Senior/Staff Machine Learning Engineer: https://jobs.ashbyhq.com/continua/

You'll work on building and improving the best LLM group chat experience there is, including fine-tuning models to boost conversational quality and improve scalability and identifying novel ways to build a "memory" which leads to a personalized and unique experience for our users. You're an experienced machine learning engineer with broad knowledge and skills and have experience fine-tuning LLMs for both generative and discriminative use cases. You have a Master's or PhD in Machine Learning (or a Bachelor’s with exceptional industry experience). You understand what it means to work at a fast-moving startup.

Oh, and we maintain a vibrant blog, including items of technical interest, at http://blog.continua.ai/. Check it out! :)

David

Please everyone, mention if you are open to out-of-region applicants, and which regions. ;-)

PetsApp – The future of pet care | Minneapolis | Remote (US/EU)

Open roles:

  - Full Stack Engineer $150k–$230k | Full-time

⸻

We’re looking for product-minded engineers who want to push the boundaries of generative AI, RAG, and intelligent automation. You’ll ship fast, solve real user problems, and help us make AI feel magical, not clunky.

Tech stack: TypeScript, NestJS, React, React Native, AWS. Bonus: AI experience, but what matters most is product intuition and the drive to build useful things.

Apply here: https://forms.gle/5fww8HDwRrP6c6Fo9

Cogram | Full-time | Remote (CET ±3) | https://cogram.com | B2B SaaS / AI for AEC

Cogram is a productivity platform for the architecture, engineering, and construction (AEC) industry. We automate core workflows including meeting notes, site reports, email management, project administration, and RFP bidding. We're backed by YC, Initialized, and other well-known Silicon Valley investors.

We're currently looking for exceptional engineers / designers:

- Senior Full-Stack Engineer (backend-heavy, Python; 8+ years). Expert Python, Terraform and CI/CD, experience with AWS/Azure, comfortable working in React/TypeScript when needed.

- Senior Full-Stack Engineer (frontend-heavy, UI/UX; 8+ years). Deep React/TypeScript expertise, strong sense for UI/UX, proven track record of shipping user-facing products, comfortable with backend when needed.

- Design Engineer (UI/UX & frontend; 5+ years). Strong portfolio required, Figma → React experience, experience covering the full design cycle.

Stack: Python (FastAPI), Postgres, Redis, React/TypeScript, React Native/Expo, Terraform on AWS & Azure. Benefits: Fully remote, three off-sites/year, ~38 paid days off, competitive salary + equity.

Apply: Email r+hiring[at]cogram[dot]com with links (GitHub / LinkedIn / portfolio [required for design engineer]) and a short note.

ko-br | cofounders hunting and founding members across design, engineering, research and business development | https://ko-br.com | Onsite (SF, USA)

Looking for another technical cofounder, a commercial cofounder (work closely with Stacey, our advisor and ex-CCO of universal Robots) and founding members. If interested, let’s catchup over coffee in sf in sep.

P.S. we are closing our pre-seed round soon so don’t worry about our runway :)

—

It’s a shame that we have unbelievably good hardware like collaborative robots (cobots) that could transform warehouses and yet they still struggle with basic tasks like unloading mixed pallets. Why? Because today's software can't handle real-world chaos.

That's where we come in. At ko-br, we're building the AI brains that make robots truly adaptable. Our physical AI models tackle messy, unstructured problems starting with depalletizing of mixed boxes in dynamic warehouses. Think real-time adaptation to shifting pallets, mixed SKUs, and unexpected failures.

We're a deep tech startup at the crossroads of AI, robotics, and human-machine interface. While warehouses are our first battlefield, our core mission is physical AI. So you need to be comfortable with the idea of pivoting to other sectors like education (ex: building robots for schools and universities).

Curious about our philosophy? Dive into our manifesto: https://ko-br.com/manifesto

—

We're hiring generalists across design, engineering, research, and business development. If you thrive on agency: designing, building, and shipping products end-to-end, join us :).

We offer strong base salaries and we don’t shy from offering large equities, following PG advise: https://www.paulgraham.com/equity.html

Apply here: https://ko-br.com/careers

—

About me: Ex-Amazon/Meta, 2x founder (agritech & gaming). Built ML models and infra for everything from satellite imagery to nanotech, powered Alexa's vision, and led ML for WhatsApp.

https://www.linkedin.com/in/ahmadbaracat

/Noona | GO/VUE | REMOTE

/$3500mo → $100K-300K FTE + 0.5%-3% equity

/Our final boss is to de-throne Yelp with co-op

/Founding Engineer? hn@joinshop.co https://x.com/trynoona

Lovable | Multiple Roles | ONSITE | https://lovable.dev

At Lovable, we empower the 99% of people who can't code to build software as if they had a product team at a stellar tech company. We're one of the world's fastest growing startups in history.

You'd be joining a small, passionate team of serial entrepreneurs (ex-YC founders), competitive programmers, physicists, and people who care deeply about building exceptional products that unlock human creativity.

We have multiple open roles, with most positions based onsite. We cover relocation (most roles are in Stockholm) and in Engineering we're looking for:

- AI research engineers, including a Research Engineering Lead

- Full-stack, frontend, and backend product engineers

- Security engineers

- Data engineers

- Platform engineers

We're also hiring in Growth (Product Marketing Manager, Community Lead, Communications, PR), Operations (Technical Talent Lead, CEO Office), and Design (Product Designers who ship, Design Engineers).

Apply at https://lovable.dev/careers mentioning HN in your application.

GoGoGrandparent (YC S16) | FULLY REMOTE | Full-time | EST timezone | 1 x Tech Lead Engineer + 3 x Senior/Staff Backend/Full-stack/Frontend Engineers | $100k-$200k (partially location-dependent) Build high-quality, robust engineering at the rarest of things - a Silicon Valley startup that is both wholesome AND profitable. We have 8-figure revenue, are YC-backed, and growing fast. Tech stack (required): Back-end (Node, Typescript, MySQL, REST* / GraphQL), Front-end (Vue.js), deploy (AWS, Docker/K8s)

Minimum 5 years experience (with Node or Vue).

2-stage interview process.

If you want to help older adults and people with disabilities, send your LinkedIn/CV to william@gogograndparent.com (keep it brief) or apply at https://www.ycombinator.com/companies/gogograndparent/jobs

MITTE.AI | Berlin, Germany | REMOTE (Europe/+- 2h timezone) | FULL-TIME | AI Creative Suite

We're building an AI Creative Suite that empowers creators with cutting-edge AI models and an advanced editor.

Join our team in Berlin or work remotely within +- 2 hours of our timezone (Europe, Türkiye welcome).

MITTE IN ACTION

https://x.com/azerkoculu/status/1945391849989976533

https://x.com/MaxVOAO/status/1961441059235352579

TECH STACK

Go, Elixir, TypeScript, React, Redux Toolkit

ROLES

Founding Engineer: https://mitteai.notion.site/Founding-Creator-254f3cdf01fb80f...

Senior Frontend Engineer: https://mitteai.notion.site/Senior-Frontend-Engineer-258f3cd...

Senior Elixir Engineer: https://mitteai.notion.site/Senior-Elixir-Engineer-258f3cdf0...

Senior Full-Stack Engineer: https://mitteai.notion.site/Senior-Full-Stack-Engineer-258f3...

Mattermost | Multiple roles | Remote (US, Canada, UK, Spain, Germany) | https://mattermost.com/careers

Mattermost is a open-core collaboration platform for mission-critical work and we're hiring for several Engineering positions.

- Product Security Engineer (Remote US, Canada, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4884309008

- Senior Product Security Engineer (Remote US): https://job-boards.greenhouse.io/mattermost/jobs/4884194008

- Release Engineer (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4884316008

- Lead Site Reliability Engineer - SRE (Remote US): https://job-boards.greenhouse.io/mattermost/jobs/4894055008

- Site Reliability Engineer - SRE (Remote US): https://job-boards.greenhouse.io/mattermost/jobs/4894083008

- Staff Performance Engineer (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4885976008

- Senior SDET (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4884075008

- Software Engineer II (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4821266008

- React Native Engineer (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4884183008

- Full Stack A/V Engineer (Remote US, Canada, UK, Spain, Germany): https://job-boards.greenhouse.io/mattermost/jobs/4884051008

Kadoa | Multiple roles | Remote | Full-Time | https://kadoa.com

We’re automating web scraping at scale with AI.

But we can't do it alone. We are looking for people who share our passion for software craftsmanship, data, and AI. We are growing fast, have a “no-bullshit” policy, and try to minimize the distance between the code you ship and the customers who use it.

We have openings for:

- Web Scraping Engineer: https://www.kadoa.com/careers/web-scraping-engineer

- Frontend Developer/UX Designer: https://www.kadoa.com/careers/frontend-dev-ux-designer

If that sounds like you, please email me at (adrian at kadoa dot com) and mention HN in the subject line.

Bubblehouse | Fully REMOTE | Full-Time | $250k | Principal Engineer

Bubblehouse is a fast-growing custom and private loyalty platform. Headquartered in NYC, the entire team is fully remote and spread across US and Europe. We power loyalty programs for large brands, including household names.

We’re again expanding our lean team of extremely experienced developers. Companies are switching from other platforms thanks to the customizations and flexibility that we offer, enabled by our pace and technical excellence, which we intend to keep for years to come.

Tech-wise, we’re running on Golang, and using custom data storage on top of local key-value stores, colocating the storage and compute on dedicated hardware servers, and reading data directly from mmap’ed pages of the database. Ever came across HN saying that one can run Twitter on a single machine these days? We’re doing that in production.

Zero lines of React, almost zero third-party dependencies (carefully vetted), every line of JavaScript manually written with respect and understanding of the web platform. We render HTML server-side like it’s 2005.

Looking for:

1. Top to bottom understanding of the software stack, from the modern-ish web platform to CPU caches.

2. Thinking and problem solving outside the box. (We don’t _always_ go for unconventional solutions, but we do it often enough to require a person who can do justice considering the entire problem space at every step.)

3. Demonstrated ability and hunger to learn new things quickly. (Every month we’re doing things we have never done before.)

4. Broad experience across multiple programming paradigms, platforms and software stacks.

5. Demonstrated care for the software craftsmanship (which can take many forms).

6. Great spoken English, and ability to communicate 9am to noon in New York time zone.

We give you a literally fast-paced environment (with features delivered in days) where you need to solve very challenging problems with practical advanced technology, take on entrenched market leaders, and help entrepreneurs across small and large businesses delight their fans.

Send a plain text cover letter to andrey+hiring@bubblehouse.com. Help us see how you stand out. Summarize your experience. Link to 1–5 impressive things you’ve built and proud of, link to where we can see some of your code, include your portfolio/CV, describe the platforms and stacks you’re an expert in. How did you start programming? What are you most passionate about in technology? What are the most interesting or weird things you’ve done? What are your strongest held professional opinions? Please make your email easy to read, we’ll appreciate that.

(If you have applied before, no need to re-apply, we’ll reach out.)

Railway | Infra eng - Storage, Infra (Platform) eng, Product Eng (full stack)| REMOTE (Worldwide) | https://jobs.ashbyhq.com/Railway?utm_source=DayMzWzJ0P

Tired of trying to beat kube into shape? Does writing YAML to ship code fill you with utter dread? Dream of a future where deploying software is simple, and you don't need an army of infrastructure engineers to build that perfect janky bash script™ to make life easy?

We're Railway, and we think infrastructure can be better. So far we've built out a platform loved by hundreds of thousands of users who simply tell us "Give me Postgres", "Deploy this repo", and we make it happen

Fair warning! The problems are complex: home-rolled hypervisors, cut-above container orchestration, over/under/whateverlay networks, virtio device drivers, edge proxies, IAM that doesn't suck, kitchen sinks - we need to build it and we're looking for likeminded individuals who think this stuff is fun.

Three open roles (apply below!):

+Infra Engineer - Storage: Apply here: (https://jobs.ashbyhq.com/Railway/25d8444a-47dc-4084-ae56-29a...) Blog post about the team: (https://blog.railway.com/p/data-center-build-part-one)

+Infrastructure Engineer(Platform): -Apply here:(https://jobs.ashbyhq.com/Railway/b8072f95-043f-404d-a313-f0b...) -Blog post about the team: (https://blog.railway.app/p/team-spotlight-infrastructure-eng...)

+Product Engineer (full-stack): -Apply here: (https://jobs.ashbyhq.com/Railway/6ddcfe47-6cce-469b-ba6d-4f0...) -Blog post about the team: (https://blog.railway.app/p/team-spotlight-product-engineerin...)

See you soon, and happy shipping.

AllSpice | https://allspice.io/ | Boston, MA / SF Hybrid or Remote | Full time (US timezones) | Mid/Sr./Principal/Staff | Golang, Vuejs, Rust

At AllSpice, we're building the future of hardware development and collaboration, applying modern software design principles to the hardware industry with design review, automated test, and Gen AI (think GitHub/Bitbucket for hardware). AllSpice is unlocking the next generation of smart vehicles, IOT devices, rockets, medical devices, robotics, and much more.

Read more about our latest Series A announcement in TechCrunch (https://techcrunch.com/2025/06/23/allspices-platform-is-the-...)!

We have a highly capable, tight-knit, remote-first team with a flex office in Somerville, MA and SF. We strongly value continuous communication and personal development. See more on our careers page https://allspice.io/careers

We’re hiring primarily for:

Sr./Principal Product Manager (Platform) - You'll lead our core product platform user experience, with new ECAD file integrations, collaboration features, and improved onboarding experience for git. You should have some experience in the hardware design process and git. https://jobs.ashbyhq.com/allspice/4d547ef4-e8c5-47c1-861d-15...

Sr./Principal Product Manager (Actions) - You'll lead Actions, our "dev-ops-for-hardware" product, improving the user experience for building automations for circuit designs, like BOM generation, linting (DFM, DVT), document generation (eg. https://github.com/wireviz/WireViz). You must have some experience in the hardware design process and git. https://jobs.ashbyhq.com/allspice/a52f87af-71e3-474c-9841-b6...

Sr/Principal SW parsing (rust) - Systems programming experience required. You'll be responsible for helping develop our ECAD schema and convert between file formats efficiently. This role can flex to be pretty senior if you have more experience than is listed. https://jobs.ashbyhq.com/allspice/5c889644-642a-468e-8289-3f...

Lead/Principal Infrastructure Engineer - You are passionate about optimizing infrastructure at scale and have a strong background in security engineering, terraform, ansible, AWS, linux system administration, and infrastructure automation. In this role, you will be responsible for working with company leadership to build our infrastructure roadmap and team, as well as executing tasks (80/20 individual contributor work to management, with greater management opportunity available as the team grows). https://jobs.ashbyhq.com/allspice/99ded9f3-4de0-420e-bedb-50...

Tech Stack: Docker, Terraform, GoLang, Rust, Python, Vue, Typescript

Please include any relevant open-source projects or portfolio in your application.

Clio | Remote Canada if outside of Toronto, Calgary, or Burnaby. Hybrid 2 days/week if local | Full-time and permanent with benefits from day one, paid by us, CAD salary bands posted on job descriptions

Clio is the market leader in legaltech products and we recently raised a Series F round of 1.4B CAD to a valuation of 4B CAD, marking the largest Canadian tech funding in history: https://betakit.com/clio-tops-4-billion-cad-valuation-with-l...

We also intend to acquire AI legal research tech company vLex (Vincent AI) to build a data moat: https://betakit.com/clio-to-acquire-american-legaltech-vlex-...

Some stats: 300MM+ ARR with 90% retention and 30% growth YoY / no debts / fortunate to have never done any layoffs. 1500+ staff before acquiring vLex, 450+ engineers, 55 eng teams.

Security - currently ~20 engineers in 4 teams (offensive sec, defensive sec, infra sec, compliance) + standing up 1 net new team soon (product sec) --> Intermediate/Senior Infrastructure Security Engineers - infra is cloud-first on AWS with Kubernetes. 130K-137K CAD base salary for Intermediate, 165K-172K CAD base salary + equity for Senior.

Machine Learning - currently ~30 engineers in 4 teams (MLE, MLOps, AI product dev x2) + still evolving especially after this vLex acquisition

--> Senior Machine Learning Engineer - NLP, GenAI, fundamentals in statistical modelling and experimentation. Open to both Canada and US. 175K-182K CAD base salary + equity for Canada, ~200K USD base salary + equity for US.

--> Senior MLOps Engineer - Python/Ruby, AWS, Kubernetes and Terraform. 175K-182K CAD base salary + equity.

Others

--> Senior + Staff Database Engineers - 2 separate roles, MySQL at massive scale. 165K-172K CAD base salary + equity for Senior and 200K-206K CAD + equity for Staff.

--> Senior Data Engineer - leans data platform and infra at scale rather than analytics. Billions of documents/PBs of unstructured text data. 165K-172K CAD base salary + equity.

--> Intermediate Platform Engineers - moving to PaaS from IaaS, Azure infra with Kubernetes and Terraform, programming experience preferred. EST-AST regions only. Remote Canada available. 130K CAD base salary.

--> Software Development Managers - 60% performance management, 20% project planning (with dedicated PMs and Designers), 20% hands-on in the code building features with the team. Code is RoR but language agnostic in hiring process. Intentionally small teams to allow for managers to also code. 205K-215K CAD base salary + equity.

Message engineering.recruiting@clio.com and/or apply directly: https://www.clio.com/about/careers/engineering/

Temporal Technologies | Multiple positions in United States - WORK FROM HOME | FULL-TIME |

Temporal offers an entirely new way to build scalable and reliable applications. Temporal enables developers to focus on writing important business logic, and not on managing state or worrying about the underlying infrastructure. Sequoia Capital led our last round of funding and our team has experience from start-ups and larger companies like Microsoft, Google, Amazon, Uber, and more.

Temporal’s Series C Funding Announcement: https://temporal.io/blog/temporal-series-c-announcement

Temporal in 7 minutes: https://temporal.io/tldr

We're looking for senior level engineers for multiple roles - see here - https://www.temporal.io/careers

FEATURED ROLES:

Senior Developer Success Engineer → https://grnh.se/ed5cec6a7us

Staff Software Engineer, Traffic → https://grnh.se/1cbb896d7us

Staff Software Engineer, Cloud Infrastructure → https://grnh.se/8b0ba8347us

Staff Developer Advocate, AI - San Francisco → https://grnh.se/00dec64f7us

Senior Product Manager, Cloud Scalability & Capacity → https://grnh.se/6a766cv77us

Senior Software Engineer, Developer Productivity → https://grnh.se/jdr272cz7us

Staff Software Engineer - Cloud Capacity → https://grnh.se/a0hc6o6h7us

US benefits include: Unlimited PTO, 12 Holidays + 2 Floating Holidays, 100% Premiums Coverage for Medical, Dental, and Vision, AD&D, LT & ST Disability and Life Insurance , Empower 401K Plan, Additional Perks for Learning & Development, Lifestyle Spending, In-Home Office Setup, Professional Memberships, WFH Meals, Internet Stipend and more! Benefits outside the United States vary by country.

Apply here https://www.temporal.io/careers/

Data Engineer | US Resident | REMOTE | Full-Time | 130-160k (open)

    tl;dr: Python + GCP + BigQuery + k8s.

    * Develop robust ETL/ELT pipelines to extract, transform, and load data from diverse sources into our data warehouse.
    * Enhance and maintain our cloud-based data storage and processing systems for performance, reliability, and cost-efficiency.
    * Implement rigorous data quality checks, monitoring, and security measures across all data assets.
    * 5+ years of experience in data engineering, with a strong grasp of data warehousing, ETL/ELT principles, and data modeling.
    * Experience with BigQuery (, Redshift, Snowflake, etc)
    * Experience with infrastructure tools (e.g. Terraform, Kubernetes, Docker) is a plus.

Job link: https://job-boards.greenhouse.io/epickids/jobs/6669024003

krea.ai | Distributed Systems Eng. & Data Engineers | San Francisco (on-site), CA

I'm the cofounder & CTO of Krea (https://www.krea.ai).

We are a startup in San Francisco building browser-based AI creative tools to improve the workflows of artists, designers, and professional creatives.

Small team (~20); millions of active users; and raised over $83M from top Silicon Valley investment firms.

We're looking for talented engineers who want to tackle hard technical challenges with smart people while building a creative platform that big companies and startups will rely on.

The job:

- Build distributed systems to process massive (billions of files, petabytes), amounts of image, video, and 3D data, solving scaling bottlenecks as you go.

- Build data pipelines and deploy ML models to make sense of raw data (e.g. find clean scenes within videos).

- Learn ML engineering from world-class researchers on a small tight-knit team. As you’re building data pipelines, you’ll contribute to foundation image, video, and world models from 0 → production, and see them used by millions of Krea users.

- Play with massive amounts of compute on huge Kubernetes GPU clusters; our main GPU cluster takes up an entire datacenter from our provider.

Tech stack: python, pytorch, k8s, a rotating cast of data tools (e.g. DuckDB, massive relational DBs, PyArrow, etc.)

You should apply if you are an excellent generalist engineer with strong backend experience and an intuition for systems design. Bonus points for deep experience with distributed systems, kubernetes, and existing ML or data experience (but not required!). Cool side projects are a green flag.

A few links about us:

- Sneak peek of our real-time video model → https://x.com/krea_ai/status/1961074072487620635

- Technical report for FLUX.1 Krea, our first open-source text-to-image model → https://krea.ai/blog/flux-krea-open-source-release

- HN discussion around FLUX.1 Krea → https://news.ycombinator.com/item?id=44745555

You can contact me at:

  d+hn@krea.ai

Phrasing | https://phrasing.app | EU Remote | Co-founder

Phrasing is the best way to learn and maintain multiple languages [1]. With support for over 120 languages, science-based methodologies, and a beautiful custom built UI, Phrasing make’s it easier than ever to learn a language… or 10.

Phrasing is built with Elixir on the backend (lots of Broadway, FLAME, Nx and Scholar) with a ClojureScript front end. Everything is stored in a single Postgres database hosted with neon. I’m moving some code to a commons library, with the end goal of using Clojure as an isomorphic solution to run the same code on web, server, and mobile (<1% of the codebase, just the critical logic). The front-end is moving from Reagent+React to HSX+Preact+Preact Signals, although that’s going to be a long and slow migration.

Phrasing is my attempt to do something different [2], from both a product and a business perspective. No investments, no hyper scaling, no growth hacking — just tripling down on building the most effective application to learn a language.

Phrasing is launched, live, has some DAUs and MRR. However, long ago I’ve reached the limit of what one developer can do. I’m looking for someone to

  - come on board and take over the entire Elixir codebase
  - watch the Broadway Pipelines, and not sleep if there are any failing checkpoints 
  - optimize request times, reduce database pressure, and speed up extraction times
  - work with me to restructure things to reduce costs/complexity
  - work towards training novel embedding spaces, custom classic ML/NLP models, and long term algorithmic improvements to the SRS [3]
  - see this as a fun challenge, and have enough ownership of the product that I can focus on some user facing developments [4]

To apply, please send an introduction hn at phrasing dot app. I will not be interviewing until the 12th of September, and no priority will be given to earlier or later applicants, so there is no rush. A sincere, well-written introduction is your best way to get an interview. No experience is required for this role, so long as you’re competent and hungry.

[1] https://phrasing.app/blog/multiple-languages [2] https://phrasing.app/blog/mission [3] https://phrasing.app/blog/humane-srs [4] https://phrasing.app/blog/a-dream-of-three-vector-spaces [5] https://x.com/barrelltech [6] https://reddit.com/u/phrasingapp

I've applied half dozen times to positions in Mumbai, India but haven't heard back once from Betterstack.

Never hear anything from Brilliant, applied multiple times. Don't even know if someone (A.I) is even reading it.

[flagged]

40GRID - Full-time Remote | Senior React Native Mobile | Senior Python Django Our mission is to empower field-service companies to grow by modernizing and automating their business operations. Every company we work with has unrealized potentials — our task is to build the platform that empowers growth and helps them unlock opportunities.

Email: jobs [at] 40grid.com (no recruiters or agencies, please put HN in subject line, thanks).

Tech: React Native

Zigment (https://zigment.ai) | Bangalore / Bengaluru, India | Full-time | ONSITE

Zigment is a customer journey platform. We make it super simple to build AI agents for enterprises.

Why should you join us?

- Small & lean tech team. - See AI in action with enterprises. - Build reliable & scalable AI systems. - Passion for tech & AI. - Access to the latest AI coding & productivity tools.

Open Roles (Hiring):

- Software Engineer - Forward Deploy Engineer (Agent). (Fresher/Interns). - Project Manager / Delivery Manager. (From Services or Product-based companies)

For SDE, you will need experience with TS/JS/Python.

Location: Bangalore, India

* We are also accepting interns & new graduates. Feel free to send the email below. *

To apply:

Send your resume to contact@zigment.ai with "Saw HN Post" in the subject line or mentioned in the email.

Our process is speedy. Looking forward to your application.

Stainless | Engineers, EMs, Former Founders, GTM, Business, more | NYC & SF ONSITE | Full-time

Stainless is building the platform for high-quality, easy-to-use APIs.

When you `npm install openai` or `pip install anthropic` or `go get …cloudflare`, for example, you’re downloading code that we generated.

We’re ~3y old, ~35 people, have strong revenue, several years of runway, and great customers (including OpenAI, Anthropic, and Cloudflare). We’re backed by Sequoia & a16z.

As one of our first 30 engineers, you’ll get autonomy to build great products, skilled peers, opportunity for tremendous impact, and competitive salary, benefits, and equity.

We’re looking for exceptionally productive, thoughtful, tasteful, and kind people with a passion for making software development better for everyone.

Want to build the future of API tooling? See more at stainless.com/jobs

SmarterDx | 150-250k+ + equity + benefits | Remote (US only) | Multiple roles | https://smarterdx.com/careers

We build clinical AI that empowers hospitals to analyze the complete record of every patient to fully capture the value of care delivered. Founded by physicians in 2020, our proprietary AI platform understands the nuances of clinical reasoning, enabling hospitals to accurately reflect every patient visit for fair reimbursement. By doing so, hospitals can recover millions in earned revenue, enhance care outcome and quality metrics, and optimize healthcare operations.

The current team is very high functioning (MD + data scientist combos, former ASF board member, Google and Amazon engineers, Stanford LLM researchers, etc.) and initially scaled the company to $1MM+ in contracted revenue without raising capital.

SmarterDx recently became part of Smarter Technologies as part of a $1.1B deal by New Mountain Capital, a leading growth-oriented investment firm. We have been backed by top investors including Floodgate (Lyft, Twitch, Twitter), Transformation Capital, and Bessemer for a total of $71M, including our $50M Series B, and are experiencing an incredible growth trajectory customer and revenue wise with no signs of slowing down with 150% YoY headcount growth! This time last year, we were at ~90 employees, and are above 225 as of today!

We are looking for: Senior Platform Engineer - Staff and Senior SWEs, Full Stack and Backend focused - Staff ML Engineers - A Director of Engineering for our Product groups - Data Science Managers - Staff Data Scientists - Senior Data Analysts - More!

We have PMF, and it's time to scale! For more and to apply, see https://smarterdx.com/careers

PUNTT.AI |Founding AI-First Growth Marketer | Founding AE | Full-time | Hybrid in New York or San Francisco

Our mission is to kill the review. Free people to do meaningful work.

Founding Account Executive: Work directly with the Founders and CEO to help build and own our GTM motion from the ground up. If you're excited about building in public, owning revenue from zero to one, and working directly with founders—you’ll thrive here.

Ideal profile: - 2–5 years in B2B SaaS sales or agency partnerships. Experience selling into marketing or creative teams is a big plus.

More info & apply https://wellfound.com/jobs/3340879

Founding AI Growth Marketer: drive early pipeline and positioning. You’ll work directly with the CEO and own everything from narrative → campaign execution → GTM growth experiments.

Ideal profile: - 4–8 years experience in B2B SaaS, creative tech, or growth marketing. Strong writing chops, creative instincts, and a bias for speed.

More info & apply https://wellfound.com/jobs/3349975

Talk Machine | Founding Engineers | Remote (or London, Dubai, San Francisco) | https://talkmachine.com/jobs

Hello. I’m the founder of Talk Machine, previously founded Citymapper.

We’re working on building a consumer voice product / platform using AI, driven by the mission to improve human communication.

Our application process is unique. Just go to https://talkmachine.com/jobs and send us a voice note and we can begin talking, just like we met in person.

We have 2 specific posts, https://talkmachine.com/jobs/engineer for full stack founding engineers and https://talkmachine.com/jobs/mobile for iOS/Android, but glad to hear from anyone that loves the product/category.

We’re seed funded and can pay competitively + quality stock options (EMI in UK).

You like: talking, consumer, voice, AI, small fast teams, building great products, chasing product market fit

You can also reach out to me at https://talkmachine.com/az. :)

Faction | Founding Engineers | ONSITE (SF) - we sponsor visas | Full-Time | $130,000 - $225,000 + equity | https://www.usefaction.com/

Faction is building autonomous AI for industrial distributors and manufacturers. Our mission is to accelerate the $2T industrial commerce market, and enable physical infrastructure to move as fast as the digital economy.

We’re looking for Founding Engineers who want to build software that runs real businesses.

Who we are looking for:

- Strong experience with Next.js, TypeScript, Python (FastAPI), and PostgreSQL

- Deep knowledge of LLM research, agents, tool calling, and robustness

- Comfort with intensity and long hours in a small, fast-moving team (we operate 9-9-6)

- Ambition to shape our technical culture and roadmap as a core founding member

For more info: https://docs.usefaction.com/careers. Email Resumes/GitHub: kunal@usefaction.com

We're building the serverless platform that powers millions of developers at the edge. Looking for passionate engineers to shape the future of edge computing.

Engineering Manager, Workers Runtime - Lead our multi-language support (JS/TS, Node.js, Rust, Python). Drive technical vision while building an incredible team. https://rb.gy/kmjt2b

Principal VM Engineer, Workers Runtime - Optimize V8 usage and JS/WASM virtual machine capabilities. Push the boundaries of what's possible at the edge. https://rb.gy/00o7a4

Senior Software Engineer, Workers Runtime - Key contributor across our technical domains. Help us innovate and scale the platform powering the modern web. https://rb.gy/095923

We're at the heart of distributed systems, runtime optimization, and developer experience that impacts millions worldwide. Feel free to reach out directly or apply through the links.

Sourcegraph | San Francisco | Full-Time | SWE, Design Engineer, Forward Deployed Eng, Head of Design, Solutions Eng (all roles code) | https://sourcegraph.com

Sourcegraph is hiring SWEs and FDEs for Amp (https://ampcode.com), the most effective multi-model AI coding agent. We're a team that ships and we build Amp in a crazy way (see https://ampcode.com/how-we-build). Backed by Sequoia, a16z, Craft Ventures, and Redpoint.

We’re hiring people who are doing impressive things with coding agents. If that's you, show us something you've built or published!

Houmanoids | https://houmanoids.com | Lots of roles

We're integrating robots in and around buildings (focused in America for now). Example usecases:

- security guards, doormen, receptionists (low mobility using humanoids)

- security patrol around perimeter of buildings (high mobility using dogs)

- moving things/packages within a building (last step package delivery)

We are building on top of Unitree's hardware and there's lots to do.

- abstraction layer similar to Swift for iOS and Kotlin for Android

- appstore

- example reference apps (think mail, calculator, camera, maps)

996 work environment due to collaboration/communication requirements with folks in China and insatiable demand for deploying robots.

deploy at houmanoids.com goes to myself (founder) and cto/cofounder