Principal Engineer - Series A Scale Up - Up to £270,000

I'm currently looking for a Principal Engineer to join a high-growth, YC-backed AI startup based in London.

It's a hands-on IC role focused primarily on scalable backend systems and genuinely at scale.

You'll be working directly with the Head of Engineering and CTO/Co-Founder — your impact will be visible and felt from day one. They're looking for someone who has taken companies from Series A through to Series C on multiple occasions ; someone who has walked into complex, high-pressure environments, diagnosed the problems, fixed them, and unlocked the next phase of growth. This is about scaling products, not just teams.

Tech Stack: Python · FastAPI · React · TypeScript · GCP

Salary: £190,000 - £270,000 + Equi...