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# Founding Engineer (Stealth)

- **Company:** a16z-speedrun
- **Location:** London, United Kingdom
- **Salary:** £97,008
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), PostgreSQL, TypeScript, Large Language Models, Backend
- **Published:** November 11, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5961465119

## About the Role

TypeScript experience. Our stack is TypeScript end to end, Deno on the backend.

You use coding agents on your own work and have your own approach to setting them up for success.

For the backend role: serious Postgres experience under load, cloud fluency that comes from operating production systems, and an ops mindset. You've done on-call and you think about threat models without being asked.

For the full-stack role: creative product and design mindset, LLM pipelines in production (multi-step, evals, structured output, not one API call), and experience keeping third-party integrations alive at scale. Taste, in code and in prose.

Opinionated but open-minded, whether the argument is about product experience or core architecture. We look for evidence of craft.