Founding Engineer
Role details
Job location
Tech stack
Job description
The first senior engineering hire. You'll own how we build - the architecture, the conventions, the bar for what we ship. You wear many hats: you build products, design systems, and fine tune models. You might tackle moonshots or polish a feature. You do what it takes to fulfill our mission. This is a soft-offered role with meaningful equity for the right person. What you'll do Set the engineering bar - architecture, code review, what "good" looks like.Own critical platform paths end-to-end: from intake through agent execution to reporting.Build and operate the infrastructure the agents run on (multi-target, multi-tenant, scaling).Pair with research and AI to translate offensive patterns into shipped code.Hire the next five engineers - write the JDs, run the loops, set the rubric.Carry the on-call when prod breaks (which it will).
Requirements
6+ years building production systems that other engineers depend on.Strong opinions on architecture, weakly held - you've watched your own designs rot in prod.Comfort across the stack: backend services, frontend, infrastructure, async / agent orchestration.A history of shipping fast in early-stage environments where the requirements moved daily (0-1).Python preferred (our core)Comfortable owning hiring - you've built or led a team before. Bonus Security or offensive-tooling background.Built agent / LLM-orchestration systems in production.Open-source projects of substance. Logistics Location: London, Hybrid with 3/4 days a week in the office.Interview process: 40-min intro chat with the founder * 10 minute chat with advisor * in person coffee and offer with the founderCompensation: Competitive, plus meaningful early-hire equity. Specifics in the first call. If parts of this don't fit but you think you'd be dangerous here anyway - apply and tell us why.