CEF AI | AI Innovator & Principal Software Engineer | Full Time | San Francisco (hybrid, remote-first) | AI Innovator: $100k–$200k + equity | Principal SWE: $80k–$150k + equity | AI Innovator: https://linkly.link/2kooz | Principal SWE: https://linkly.link/2kop6

CEF AI builds an AI-first data automation platform for secure, decentralized orchestration of agents that compute directly on encrypted data streams. We’re shipping original systems (not wrappers), with multiple tuned models (CV, NLP, LLMs) and a next-gen multi-agent data infrastructure. Small team, high ownership, low bureaucracy.

What you’ll do

AI Innovator: Prototype and ship production AI features fast; extend our multi-agent orchestration; design private/sovereign data pipelines and dynamic indexing; collaborate tightly with founders to turn research into product.

Principal SWE: Own core platform architecture; design and scale distributed backends/APIs; build great DX (SDKs/CLI); lead reviews/mentorship; drive 0→1 projects with strong reliability and observability.

You might be a fit if you have

A track record taking systems from concept to scale and to revenue.

Deep backend/systems skill (Go/Rust/Kotlin or similar); strong CI/CD/testing discipline.

Experience with distributed, real-time data infra; privacy/security minded.

Hands-on AI product chops (CV, NLP, LLMs/agents) and bias to build/iterate quickly.

Clear communication, product intuition, and comfort working directly with founders.

Apply via the role links above.

Deputy Director of AI Engineering | Ministry of Justice, UK Government | London/Cardiff

Help lead a world-class engineering team, delivering meaningful change across prisons, probation and the courts. Learn more and apply here - https://jobs.justice.gov.uk/careers/jobdetail/11367-deputy-d....

Any questions, ping Email is hidden dot uk

Tufalabs | COO & Senior research/engineers | Full Time | Zurich, Onsite | 100-130k CHF | https://tufalabs.ai/

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB200 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, while keeping in mind AI alignment and safety. The ultimate goal is to make sure AI goes well for humanity.

I am looking for a COO to help scale from ~10 to ~15 people.

Ideally you care about AI research, you are excited about the idea of helping us move faster, you like to keep red-tape low, you are a technical person who can create automated processes, and have experience owning and running operations at a startup.

We are also open to senior engineers and researchers, comp negotiable

If interested, email me at benjamin at tufalabs.ai

HomeVision | Multiple Roles - Eng, SRE, Analytics | Hybrid SF & Remote | Full-Time | $100k-$220k + equity

We have three open roles:

- Engineer - Hybrid SFO I'm looking for an junior-to-senior software engineer to work with me (CTO) directly. Our systems process millions of pages of documents a month for the mortgage industry. We work with some of the largest lenders in the country and are at the forefront of applying LLMs and other multi-modal models in this industry.

New-grad and junior engineers particularly encouraged to apply. Looking for people who are motivated to write good code with a good mix of practicality and aesthetics.

- SRE - US Remote (SFO or Seattle preferred) - This is a broad role on the platform team including AWS infra w/terraform, software engineering, and IT

- Analytics Engineer - US Remote (SFO or Seattle preferred) - Another broad role that includes managing the data warehouse, building durable and ad-hoc reports in sql and python, and doing deep analysis.

Please apply here: https://jobs.ashbyhq.com/homevision/a3f79d43-5d9e-46bf-a43f-...

Ditto | Product Designer | Remote (US/Canada) | $140-200K + early team member equity

Ditto helps teams manage their copy from design to production with a single source of truth. Over 3600 teams (from Fortune 500 companies to startups!) currently use Ditto.

We're hiring our second product designer to help to define and design our core product, from strategy to execution. As the second designer on our team, you’ll have an outsized impact on defining not only what Ditto is and how it works, but what we do next.

Ditto is a design-driven company. Our design function has high ownership around identifying and shaping problem spaces, exploring solutions, and helping to drive implementation. We don’t have a product function—instead, both design and engineering own the product lens. We think this is critical for Ditto’s product, which used by design and engineering teams in their day-by-day workflows.

More info and to apply: https://www.dittowords.com/careers/product-designer

ComfyUI | Founding Technical Recruiter | Full-Time | On-site (San Francisco) | $150K – $250K + Equity ComfyUI is a creative AI startup helping designers and engineers build next-generation visual tools powered by generative models. We’re a small (12-person) team growing fast and backed by top investors. Role: Own recruiting end-to-end — design interview loops, implement ATS and recruiting ops, and hire world-class engineers, designers, and GTM talent. Partner directly with founders to shape our team and culture as we scale from 0 → 1. Requirements: • 5 + years recruiting for VC-backed or hyper-growth startups • Experience building systems/processes, not just filling reqs • Comfort operating independently and collaborating closely with leadership Compensation: $150K – $250K + equity Location: San Francisco (on-site 5 days/week) How to apply: Email Email is hidden with subject line “HN - Founding Recruiter” and include a short intro or your LinkedIn/resume (PDF).

Nexufend | UX/UI Frontend designer + developer | Hybrid/REMOTE Europe (within 5h travel time to VIE)

Nexufend is revolutionizing enterprise network security with a groundbreaking distributed firewall that provides process-level visibility. Founded by entrepreneurs who built Safing (4th fastest-growing open-source startup in 2022), we're scaling our B2B security platform.

We're seeking a User Experience and Interface Developer to craft intuitive interfaces for our network security platform. You'll work across our Dashboard UI (Svelte), Grafana integration (React), and supportive components, transforming complex security data into accessible, user-friendly experiences. Working directly with our CTO, you'll have significant creative freedom to shape how IT administrators interact with cutting-edge security technology.

https://join.com/companies/nexufendcom/15097623-ux-ui-fronte...

PrecisionBiome- Top 3 Young European Companies of 2025| Top 0.1% Founding Full-Stack Engineer | Munich/Berlin (onsite) | Full-time | Visa OK

PrecisionBiome builds personalized gut-microbiome therapies to eradicate chronic disease. Bootstrapped → post-revenue; recognized among the Top 3 young European companies by the European Commission. We’re now scaling the platform.

Role Own the full stack that connects lab data → models → patient/clinician outcomes.

-Strength in one or more of: data pipelines, distributed systems, ML in prod, privacy/compliance

-Low-ego, high-bandwidth, truth-seeking mindset

-->How we work Builder pact. Ownership > hierarchy. Fast feedback, high agency.

Compensation -Salary + meaningful equity. Sponsorship available for exceptional candidates.

Start ASAP · Onsite in Munich or Berlin.

Email Email is hidden —-->or book a quick intro with the founder: https://calendly.com/m-wessely-precisionbiome/call-w-moritz

Let’s build the future of hyper-personalized health.

ko-br | Computer Vision, Imitation Learning, Reinforcement Learning Researchers & Engineers | https://ko-br.com | REMOTE (Globally)

We build Physical AI models deployable today in warehouses to solve mundane tasks like palletizing. Our tech lets robotic arms adapt to mixed SKUs, grip slips, and chaotic environments in real time.

Have a read through our manifesto: https://ko-br.com/manifesto

We want you if You solve problems like an owner (no ego, no blockers). Don’t say "it won’t work." Try it. Validate it. Ship it.

Engineering roles:

— You're hands-on, no theory, just building — Experienced engineer? Great! Recent grad/PhD? Don't get discouraged, apply if you're itching to ship real products Why join?

— Generous base + equity — Work with state-of-the-art AI and real robots (UR/ABB/KUKA/FANUC). — Build tech that solves valuable problems today. About me: Ex-Amazon/Meta. Built AI from satellite imagery to nanotech SEM, powered Alexa’s vision, led ML for WhatsApp. Now building robots that adapt to chaos.

https://www.linkedin.com/in/ahmadbaracat

Apply: https://ko-br.com/careers

Qweebi | Senior Backend Engineer | Remote (IST ±3) | Full-Time

Qweebi is building the world’s first Virtual Makerspace — a 3D online platform where K–12 students can collaborate in real time to design, build, and test high-fidelity Robotics, Engineering, and Electronics projects.

We’re looking for a Senior Backend Engineer to own backend systems, scale infra, and ship AI-powered features. You’ll architect distributed systems, optimize perf/latency, evolve CI/CD, and help us support thousands of concurrent student sessions.

Please apply on: https://careers.qweebi.com/jobs/gw1ihjushe4x/senior-backend-...