Unto Labs | San Francisco, CA | ONSITE (Hybrid OK), REMOTE (US) | Full-Time

Unto Labs is developing the Thru Layer-1 blockchain (https://thru.org)

We recently announced $14.4 million in funding to make blockchains & digital assets useful for the world. Founded by Jump Crypto alumni and core contributors to the Solana protocol and the Firedancer client (https://github.com/firedancer-io/firedancer), we’re tackling fundamental scalability, performance, and usability challenges in distributed ledgers.

Our runtime conforms to the RISC-V specification—moving away from domain-specific VMs, DSLs, and bespoke compiler toolchains that limit developer and institutional adoption. You can write smart contracts and programs in any LLVM compatible programming language and reason about a standard ISA in RISC-V. Components are developed in C for maximal control over performance and resource usage.

We believe there is a unique window of opportunity to developer fairer, more accessible, and more global financial products on resilient public blockchains.

We are hiring for the following roles:

- Systems Engineer: https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

- Design Engineer: https://jobs.ashbyhq.com/unto-labs/81cbbb75-a75a-4d96-b5da-7...

- Product Engineer: https://jobs.ashbyhq.com/unto-labs/1ae2769b-1a67-41e2-a8d6-5...

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/

Nomi.ai | Senior Machine Learning Engineer | Remote (Global) | Full-time | $150k–$250k + equity

At Nomi, we're building AI companions that form deeply meaningful, humanlike relationships and immersive roleplaying experiences. With over a million users growing at ~10% month-over-month, your work directly impacts millions of lives. Our users tell us we've helped them find self-worth, leave unhealthy relationships, try therapy, and even save their lives. See countless real user testimonials here: https://nomi.ai/spotlight/ and our recent news coverage here https://www.cnbc.com/2025/08/01/human-ai-relationships-love-...

As an ML Engineer or Senior ML Engineer, you'll lead innovation in large language model (LLM) post-training, retrieval augmented generation (RAG), and agentic capabilities, directly shaping how users connect with our AI.

We offer:

    * Full autonomy to experiment and deploy cutting-edge ML techniques
    * A fully remote, async culture emphasizing results over meetings
    * International team with visa sponsorship available
    * For US employees: 401k (100% match up to 5%), fully covered health insurance, equity

    * Extensive hands on experience with things such as multinode training, rlhf, knowledge distillation, test time compute, rag
    * Up to date with SOTA in LLM post training (would love to hear what research paper you think is or would be most impactful for our roadmap!)
    * Genuine passion for our product, finds the idea of engaging with our community on Discord/Reddit to be a pro (it is a very different experience than developing enterprise software!)
    * A high internal bar for excellence and relentless drive

Rad AI | Remote US, CAN (+ Office in SF) Empowering physicians with best-in-class AI radiology solutions to save time, reduce burnout, and improve patient care. Series C with tremendous momentum.

High-priority technical roles in ML+Speech, Senior Security Engineer, Application + Cloud, and lots of need for full-stack product engineering

Unique Business Operations & Strategic Initiatives Lead role for the Office of the CEO, reporting to the Chief of Staff.

Apply here >> https://www.radai.com/careers?utm_source=W29wy29rlJ

DMI | Principal Full Stack Engineer | Munich, Germany | Full-time | ONSITE

DMI is a bootstrapped startup building the next-gen autonomy platform for defense & aerospace. Join us as Principal Full Stack Engineer to own and shape our product with the CTO.

You'll:

* Build high-performance frontends (Next.js, React, TypeScript)

* Integrate full-stack systems (FastAPI, Python, Rust)

* Optimize CI/CD and DevOps

* Mentor engineers and drive best practices

* Work directly with the CTO to shape product and technical strategy

You have:

* 5+ years building production software (3+ years frontend)

* Deep experience with our stack

* Strong DevOps/testing mindset

* Bonus: Real-time simulation, 3D/geospatial, or defense experience.

Why DMI?

* Product ownership, ESOP (employee stock option)

* A small, expert, high-impact team

* Great Munich office (simulator, BBQ, mountain views), mobility benefits, health and fitness benefits

Other software/ML roles open, just email me.

Interested?

Reach out directly to me (Pau): pgs(a)datamachineintelligence.eu

E2B | SF (US) or Prague (CZ), both on-site | [AI | Platform | Systems | Distributed Systems | Customer] Engineer/DevRel Engineer/Head of Engineering | https://e2b.dev/careers

E2B is an open-source infra devtool that gives AI agents cloud computers that we call sandboxes.

We're Series A startup with 7+ figures revenue, customers like Perplexity, Hugging Face, Manus, or Groq, growing fast, 5+ years of runway, and a full roadmap of exciting features to build.

I'd love to chat if you want to help us with some of the scaling challenges, DX, or new products!

Feel free to send me your projects to vasek[at]e2b.dev.

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!

Windmill.dev (YC S22) | Software Engineers | Paris (ONSITE 3d/wk) | Full-time

Fastest open-source workflow engine built in Rust + Svelte. 300+ Enterprise customers. Profitable with a lean team of 9 engineers.

Looking for new cracked software engineers to join us in Paris.

https://www.ycombinator.com/companies/windmill/jobs

Two Six Technologies | Reverse Engineer/Vulnerability Researcher | Arlington, VA | ONSITE | Full Time |https://job-boards.greenhouse.io/twosixtechnologies/jobs/547... Two Six Technologies is seeking senior reverse engineers & vulnerability researchers to perform in-depth reverse engineering and exploit development to transition those findings into capabilities. We are looking to hire embedded security researchers with experience in the following categories: firmware reverse engineering, hardware reverse engineering, and Linux/UNIX kernel development. Additional opportunities are available for embedded software engineers, electronic design engineers, digital signal processing engineers, hardware reverse engineers, firmware reverse engineers, and low-level kernel developers looking to enter the security field. We would love to hear from you if you work in the embedded security domain. Preference is for applicants who hold a TS clearance and have the ability to obtain SCI at a minimum. If interested, please reach out to our team @ recruiting@twosixtech.com

Close | Full-Time | 100% Remote - US Based

* Sr. Backend Engineer (Python)

* Site Reliability Engineer

* Sr. Machine Learning Engineer

Close is a bootstrapped, profitable, 100% remote, ~100 person team of thoughtful individuals who prioritize taking ownership and making a meaningful impact. We’re eager to make a product (Sales CRM Software) our customers fall in love with over and over again.

We’re looking for high achieving, full-time Software Engineers to join our team. Folks who have a good understanding of web technologies and want to help design, implement, launch, and scale major systems and user-facing features.

https://www.close.com/careers

Lumion (lumion.ai) - Formerly Mia Share | REMOTE (US/Canada) | Senior Software Engineer – PHP/Laravel

Apply: https://jobs.polymer.co/mia-share/35339

We are a venture‑backed startup ($10.7 M seed from TTV Capital and Tusk Ventures) building the all‑in‑one operating system for trade and technical schools. Our platform covers student enrollment, tuition payments, SIS, reporting and alumni tracking, helping schools in fields like healthcare, construction and transportation serve more students.

You will own feature development and scaling across a modern Laravel 12 + PHP 8 stack, using Filament and Livewire/Alpine.js for interactive UIs and Pest for testing. Expect hands‑on work with REST APIs, payment workflows, performance tuning and architecture decisions in a fast shipping, highly collaborative remote team. We look for self‑directed engineers who care about code quality and are motivated by our mission to expand skilled education.

Sound interesting? Read the full description and apply at the link above.

Syncari | Remote (US only) | Full-time | Director, Solutions Engineering

We are an all-in-one modern data integration, management, workflow and analytics platform.

VC funded, small team. Hiring for Director, Solutions Engineering team, to run our onboarding, implementation including PS and support functions.

Apply: https://www.linkedin.com/jobs/view/4276895381/

Comp: $175k base + bonus + equity + 95% healthcare contribution (medical+dental+vision and some life insurance)

We don't sponsor visas at the moment

Spice Data (S19) | San Francisco, CA | Full-time

We collect and license data about the food industry to large restaurants, CPGs, and consultants

Profitable, tiny team, growing quickly, not raising VC

Hiring new grads for junior SWE and junior Product Associate:

https://www.ycombinator.com/companies/spice-data/jobs/WccsIm...

https://www.ycombinator.com/companies/spice-data/jobs/RJz1pe...

Plural | Remote (U.S. Time Zones) | Machine Learning Engineer | Full-Time Contractor | https://pluralpolicy.com/

Plural is a legislative intelligence company that seeks to make democracy more transparent and accessible through a SaaS-based web application, a FOSS suite of legislative data tools, and a growing portfolio of AI-driven tools and agents. We help policy professionals understand and take action on complex legislative documents using LLMs and house-trained ML models, and we are seeking a Machine Learning Engineer to help us design and develop these tools.

https://pluralpolicy.com/wp-content/uploads/2025/07/Job_-Pyt...

Range | Mclean, Virginia - On-site | Full Stack Engineers (Senior/Staff/Principal) | Full-time https://www.range.com/public/careers

We're building the first AI wealth platform and hiring full stack engineers to partner closely with our co-founders and engineering leadership. We're a Series B company with 70 people all passionate about making wealth management better, faster, for every household. We're open to relocating candidates. Email me (tyler at range dot com) if you're interested to learn more.

Stack: Nodejs, Graphql, React, Typescript, AWS Comp: $150 - 250k base + equity

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

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.

Roles:

We are hiring for software engineers, forward-deployment, and integration engineers.

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.

Stack Auth (S24) | San Francisco, CA | Full-time

Hiring design & founding 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.

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 :)

konsti@stack-auth.com | https://stack-auth.com

Scan123 | https://scan123.com | Product Engineer | Hybrid Portland, OR | 100-115k

Flexible, Fullstack Software Engineer role. Scan123 is small, has been around a while, and serves the auto dealership industry. The role will be part of an effort to branch out in new directions with a new codebase. They’ve got a mature product in LAMP, but this role is to work on brand new, green field adjacent products using React and Supabase (started on Lovable), deployed on Vercel. The codebase you’ll be primarily working in is now a few months old. Hoping for someone who has a good handle on using AI effectively to accelerate, especially with prototypes but also can take responsibility or code quality in a React app. Hybrid environment: Some meetings in-person, and general sense that you should come in to the office to collaborate or if it’s useful to you, not just because. 3-5 years experience.

https://www.linkedin.com/jobs/view/4272404311/

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...