Founding Engineer

Type: Full-time permanent contract, or an internship with potential follow-up offer

Location: San Francisco or remote, with future relocation to San Francisco (sponsored)

Start: ASAP

About us

• We're building state-of-the-art context compression. Our mission is to become the "Cloudflare for LLMs" — a compression layer embedded into most LLM pipelines by default.
• We're a team of ex-EPFL MSc/PhDs from dlab. We started by publishing papers, then got into YC and started making money helping companies cut their LLM costs.
• We run the business like a research lab: form hypotheses, kill the ones that don't work, double down on the ones that do.

About you

• A cracked full-stack engineer who enjoys a high-paced startup environment, takes pride in what they build, and owns it end to end.
• Python / basic MLOps skills. Experience scaling AI infra products is a plus.
• Proactive, strong communicator, fast response time, team player.

Tech requirements

• Strong backend engineering fundamentals
• Experience with concurrency and distributed systems
• Ability to work across systems (Python + light frontend)
• Excellent Claude Code (or similar) user

Nice to have

• Open-source contributions
• Startup experience
• OAuth / API auth flows

Stack

• Backend: Python, FastAPI, PostgreSQL (Supabase), Redis, AWS
• Frontend: Next.js, React, TypeScript
• Tools: GitHub, Docker, Sentry, GitHub Actions

Interview process

1. Screening: CV, your Claude Code setup, and a short writeup of a project you're proud of
2. 1-hour technical interview
3. Paid take-home, max 7 hours — you'll get detailed feedback either way
4. 1-hour combined fit interview and take-home analysis
5. Offer

Contact: [email protected]