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.

The Smart Coop | 2nd Founding Engineer | Remote or Onsite | Austin, TX | Full-time, Part-time, Internship if you’re scrappy

My name is AJ Forsythe and I'm the Founder / Chief Chicken Tender at Coop! We're an Austin TX based company on a mission to build the world’s largest decentralized food production network, starting with AI powered chicken Coops. (see what we’re building at www.Coop.Farm) We’ve been in the market for about 18 months and our customers are in 48 states and will generate about >5M eggs this year. It's insanely fun to work on and we have a shot at building a huge business in the connected urban farming space. If you’re big into computer vision, consumer products that are fun, and an awesome team we would love to chat. The Coop has an automatic door + cameras doing computer vision work (predator detection, egg alerts, remote health monitoring, etc). It's a super exciting time and are seeing directional product market fit which I'm thrilled about. Seriously go check out our website, it's a super fun + amazing product.

We’re a tight-knit team of 6 people with 15+ years of experience working together. We’ve been through YC, started and scaled multinational million-dollar businesses together, taking them from idea to acquisition by a Fortune 50 company. We’re gritty and passionate without taking ourselves too seriously - and we’re here to build something really exciting that helps people reconnect with their food and the planet. We're VC backed (call it $5M) by some of the world's best investors but we are a scrappy small team that moves fast.

We have an absolutely fantastic CTO Ryan that I'm looking for his / our right hand person to work alongside with. I think the term full stack is overused but that's closest to what we're looking for. Also this really isn’t a traditional Eng role, I look at it as we’re a small growing team and you would be one of us working on a ton a cool projects on day 1. Also, we LOVE working with founders so if you've started a company before that's epic.

You can also reach out to me directly at: aj[at]coop.farm - Just email me your LinkedIn / GitHub / portfolio + why you think you'll be an awesome fit and I'll respond. This is my 3rd company (2 have exited) and I want to build the super solid core team and you might be the perfect fit for us and vice versa.

Bwok Bwok!

AJ

London, Newcastle and North UK | Remote (UK) with occasional travel | Full-time | https://www.literal-labs.ai

Hi are you based in the UK? We are looking for Junior, Mid to Senior Full Stack Engineers.

This is Leon, the CTO at Literal Labs. At Literal Labs, we build state of the art Machine Learning algorithms for the Edge and other targets that go brrr, and are looking for talented engineers to help us build web training tools to put these models in the hands of users.

Our mission is to create models that have a light touch on the environment, and that work for all.

This role is remote, though the right to work for a UK-registered company is required. Read here for more about how we work:

https://www.literal-labs.ai/careers/

And here more generally about some of the the company's technologies:

https://www.literal-labs.ai/tsetlin-machines/

But we are building out other techniques too!

Please email jack@literal-labs.ai with the subject HN, and please cc me in too (leon@literal-labs.ai). Thanks!

Recurse Center (YC S10) | Career Facilitator / Full-Cycle Recruiter | Onsite | Brooklyn | Full-time

We operate a programming retreat with an integrated recruiting agency.

We're hiring a Career Facilitator to support our mission to transform lives by helping people direct themselves. This is a full-time, onsite role in Brooklyn with meaningful work, good benefits, great colleagues, clear goals, and a healthy culture.

We're a small, privately held business with no outside investors (except for YC, which invested ~$17k in 2010). We do not plan to raise money or go public.

Full details and how to apply in our job post: https://recurse.notion.site/Career-Facilitator-22300db231b58...

Abnormal AI | REMOTE (US, Canada) with optional offices in SF & NYC | https://grnh.se/y5i0cdv43us

I am an Engineering Manager in the Message Security Division. My team builds the platform for inbound email security, fighting cybercrime every day at a massive scale!

We are looking for a Staff MLE that will serve as a technical leader and subject matter expert, providing architectural guidance and mentorship across multiple machine learning workstreams. This role is central to our mission of protecting the world’s largest enterprises. You will be responsible for reasoning about the gaps in our multi-layered detection system and proposing generalizable ML solutions.

I'm also looking for exceptional backend software and distributed systems engineers. We have multiple open positions for each of these roles, working in Python, Golang, Spark and Kafka among other leading edge technologies.

Abnormal AI recently secured our series D round of financing at $250 million and is growing like a rocket in every way. If you're looking for personal as well as company growth, you won't find a better company than Abnormal AI!

Please see the following links for more details on the open positions and our general careers page link for all open positions across the company. We are hiring for engineering in other divisions as well!

Staff Software Engineer - Attack Detection

    Remote USA: https://grnh.se/ayvndq9o3us

Staff Software Engineer - Signals and Serving

    Remote USA: https://grnh.se/y5i0cdv43us

Software Engineer II - Scoring Orchestration

    Remote USA: https://grnh.se/y5w71n2s3us

    Remote Canada: https://grnh.se/hmh78zsg3us

Ride with GPS | Full Time Remote | https://ridewithgps.com/about

We are the world's best library of bike routes, and we enable cyclists to go on better rides, more often. We have a website and mobile apps that allow people to discover the best riding in their area, and get turn by turn navigation using either our mobile apps or the bike computer of their choosing. Come join us in taking Ride with GPS to the next level!

Senior Software Engineer - iOS Development: We have a technically interesting, battery efficient app that offers a full-featured bike computer (ride recording, & route navigation), a route planning tool, as well as ride management, analysis, and more. We're looking for a talented iOS engineer to help us take what we've done to the next level.

Details, and application process available here: https://ridewithgps.com/careers/job_postings/2025-ios-engine...

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

We're a VC-funded startup 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

Chroma | ONSITE - San Francisco | Full-time | https://trychroma.com

Chroma is the open-source search and retrieval database for AI applications. It's an open-source database with vector, regex, and full-text search. We support local, single-node, and cloud hosting. Help build the future of context engineering!

We're a team of 17, all engineers today. We work in Rust, Python, Typescript, and Go.

We're hiring for these areas:

- Head of operations

- Product design

- Production engineering

- Platform engineer (Rust)

Apply here: https://jobs.ashbyhq.com/trychroma/9ed3aee8-07dd-44e3-9ca1-d...

More details at: https://careers.trychroma.com

Chestnut | Hiring multiple roles (across engineering) | San Francisco + Seattle hubs (hybrid) | https://jobs.ashbyhq.com/Chestnut

Massive opp. Chestnut is the first AI-native operating system for insurance distribution management, tackling a $100B+ spend pool in the largest industry in the U.S. Legacy software and manual processes dominate this space; Chestnut is the only modern platform enabling real-time data, automation, and agentic AI workflows that directly grow carrier revenue.

Our stack: Go, TypeScript/React, Postgres, Temporal, K8s, Dagster, LLMs.

******

We’re hiring:

** Forward Deployed Engineer – Work directly with customers to ship AI-powered workflows and integrations. https://jobs.ashbyhq.com/Chestnut/5d4fd1ec-60f3-4669-a2d2-31...

** Senior Software Engineer – Build core services, event-driven systems, and automation layers that scale. https://jobs.ashbyhq.com/Chestnut/fbbb7601-3d31-48b4-8639-75...

** Staff Software Engineer – Lead architecture and technical direction as we scale past enterprise workloads. https://jobs.ashbyhq.com/Chestnut/f28c5ee5-12aa-4e7b-b0ea-f5...

** Engineer [Agent Orchestration] – Focus on applied systems: multi-agent coordination, workflow automation, retrieval, and tool use. Bridge research to production and design orchestration layers for enterprise reliability. https://jobs.ashbyhq.com/Chestnut/075a0010-bfa5-489e-8808-e9...

** Engineer [ML + Agent Design] – Experiment with prompting, fine-tuning, and novel LLM techniques. Prototype new agent behaviors and push the boundaries of how models reason, interact, and automate in data-heavy domains. https://jobs.ashbyhq.com/Chestnut/0b6e2b45-fab9-47f2-8f10-30...

We’re also hiring for Product & Commercial Lead and Data + Infra roles (details on the site).

******

You'll work on the bleeding edge - embedding enterprise-grade agentic AI at scale. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact.

More info + apply: https://jobs.ashbyhq.com/Chestnut

krea.ai | Distributed Systems Eng. & Data Engineers | San Francisco (on-site), CA

I'm the cofounder of Krea (https://www.krea.ai), a startup in San Francisco building browser-based AI creative tools to improve the workflows of artists, designers, and creatives. Small team (~15); millions of active users; and we've raised over $83M from top silicon valley 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.

- Work with our research team to build ML pipelines and deploy models to make sense of raw data (example - 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.

Our 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 (though not required!). Cool side projects are a green flag.

A few links about us:

- Technical report for FLUX.1 Krea, our latest 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

- A cool demo by one of our users → https://x.com/syntonikka/status/1941198480820797921

You can contact me at d+hn@krea.ai (the +hn will bump your email in my inbox).

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

Andesite AI | Senior Full Stack Software Engineer | Remote (US) | Full-time

Andesite AI is a company founded by industry and govt veterans to build security products that transform how humans and AI collaborate to defend against increasingly sophisticated cyber threats.

We are looking for an experienced software engineer who not only loves the craft of building great software but also building and leading great teams. Since we are navigating the noisy space of AI to deliver a real, valuable tool to cyber analysts, traits like technical expertise, conviction, creativity and leadership go a long way.

Please apply here and reference this post in your application! https://job-boards.greenhouse.io/andesite/jobs/4773650007

There are also a few other roles open on our career page as well (threat hunter, customer support engineer): * https://job-boards.greenhouse.io/andesite

ether.fi | BE/FE/FS Software Engineer | Denver, New York, Grand Cayman, On-Site | Full-Time | $130k - $200k + equity + health benefits

ether.fi is building the crypto native neobank of the future. We are a profitable early stage company that currently has $10B in TVL, a top five ethereum protocol when ranked by TVL. Our 3 products, Stake, Liquid and Cash all generate revenue and we are scaling up our team to keep up with growth.

We're looking for mid-level and senior-level frontend, backend and full-stack candidates without about 5 or more years of experience building web applications. We use golang, typescript (node.js & react/nextjs) and python, but we are considering candidates with other stack experiences, no crypto/web3 experience required.

Engineering is based across all offices and on site. We highly value in office collaboration & believe it gives us a competitive advantage over other companies!

Only apply if you are ready for a true challenge and to work with a hard working and brilliant team!

Links for reference: https://defillama.com/chain/Ethereum https://dune.com/ether_fi/etherfi-cash

If interested, please apply here: https://jobs.ashbyhq.com/ether.fi?utm_source=wVAJjAdWZJ

DuckDuckGo | Multiple Roles | Remote | Full-time | $178.5k + 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 Software Engineer, Windows Desktop App - $178,500 USD + equity — https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Android Engineer - - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...

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

Director, Product Management - $243,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/2a379a3e-ee10-45d2-927...

Senior Frontend Engineer, React/Typescript - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/5d3e230c-ecf4-407a-a3a...

Tax Accountant (US) - $87,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/7b255a8f-91aa-4a0e-b02...

https://duckduckgo.com/car

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

At Continua (http://continua.ai/), we've built an AI agent that users can invite into group conversations to make planning, coordination, and information retrieval effortless, and we're expanding our team. We've seen rapid growth over the last few months and want you to help us scale to the next level. Try adding our agent at http://continua.ai/ to group texts 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 for two positions:

Senior/Staff Machine Learning Engineer (NYC or Seattle): https://jobs.ashbyhq.com/continua/f1d8fc3e-7092-486b-95c2-06... 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.

Product & Growth Manager (NYC): https://jobs.ashbyhq.com/continua/c3bc02c4-9663-4d69-8731-89... You're a technically minded PM that will drive go-to-market execution, user research, and feature development. You’ll run fast experiments, talk to users daily, and help us build the product roadmap based on real-world feedback and data. Ideal candidates have strong startup instincts, a technical background, and experience launching or growing AI products.

We offer competitive salary and equity, health benefits, 401k, and the opportunity to help shape the future of AI agents during one of the most exciting moments in computing history! Come build with us: https://jobs.ashbyhq.com/continua/

Yardstik | https://www.yardstik.com/ | Staff Engineer | Minneapolis or San Francisco (remote possible)

Yardstik is on a mission to reduce workforce risk through tools like background checks, identity verification, fraud monitoring and more. We are a well capitalized fast growing company based in Minneapolis but with a distributed workforce.

We’re looking for a Staff Engineer to help us build a brand new line of Risk products.

This isn’t just a heads-down coding role. You’d be leading the technical direction for an entirely new product category — shaping the architecture, making key system decisions, and working closely with Product and Go-To-Market to bring it all to life.

We’re a Ruby on Rails shop, so if you’ve got deep experience with Rails (and opinions on how to scale it well), you’ll feel right at home. You’ll have a ton of ownership, real input into the roadmap, and the chance to build something from the ground up that truly helps our customers reduce risk in smarter ways.

Apply here: https://app.trinethire.com/companies/135023-yardstik/jobs/10...

Broadn Inc | https://www.broadn.io | Founding engineer | NYC - USA | Full-time | Onsite in NYC - US persons only | Full-stack |

Broadn works with USA manufacturers to help them accelerate the configuration, pricing and quoting process for their industrial products. Our platform handles manufacturers operating in electronic parts, pipes, packaging, aerospace, defense and metal parts.

Our ideal software developer has an incredible curiosity, experience across full development stack. We expect production environment experience, leading with curiosity, great communication skills and full ownerships over parts of the system . We need to solve problems anywhere from the CNC machine to multi-datacentre GovCloud so we look for a problem solver with solid understanding of algorithms, data structures that can write efficient minimal solutions.

This is an on-site role in NYC. We don't work with non-US Persons due to the nature of our work.

- Proficiency in TypeScript and JavaScript for backend and Front-End - this is our core tech stack

- Nodejs, typescript, javascript, bun

- any experience with any of: python, java, scala, rust, go, C#, C/C++

- AWS, GCP, AWS GovCloud, Azure

- React, Vite

- OOP, functional programming

- data structures and algorithms

- Experience with dev tooling:, bash, git, Docker, cloud infra, Linux environments, CICD

- Ability to write minimal, efficient code that solves problems elegantly

Please reach out with your resumes directly to @victor with broadn.

JustPark | https://www.justpark.com/ | Senior Golang Engineer | US remote or hybrid (in Dallas area)

JustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking—while empowering our operating partners to deliver exceptional parking experiences.

Join us as a Senior Golang Engineer on the Passes Team, where you’ll play a crucial role in building, testing, deploying, and maintaining JustPark’s cutting-edge applications. Our team drives the architecture and delivery of our B2C driver-facing app and associated admin tools, fueling the parking experience at iconic venues like the Mercedes-Benz Stadium, The Greek Theatre, and The O2 Arena.

Apply via job board here: https://apply.workable.com/justpark/j/850D7D07AE/

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

1. Customer Supper Representative | 65k - 75k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4142396007

2. Content Designer | 90k - 130k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4619121007

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

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

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

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

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

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

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