Founding Engineer

CodeWall is building the future of cyber security and on a mission to create the world's best AI super hackers. We are VC-backed by some of the best and just closed our $4M pre-seed round, the largest ever for a cyber startup in the UK. Read our manifesto for why we built it, and our research for what it's already found https://codewall.ai.

Come hack the planet with us! About the role 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). What we're looking for 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 founder Compensation: 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.