Head of Engineering/Founding Engineer, Fintech Startup TypeScript, Next.js, AWS, AI Six-figure salary Equity that exceeds market-standard London - hybrid Our client is an early-stage AI start-up with significant funding secured, early infrastructure built, MVP already live, 3 major pilot partners in motion. The vision set: become the agentic workflow automation for accounting. As Founding Engineer you will create the tech team. As Head of Engineering youll touch architecture, infra, product, distribution; youll write code that defines the company - and make decisions that define its culture. The person were seeking will indisputably have tech start-up experience. You will have built and shipped products end-to-end (ideally B2B), without permission or supervision; think in systems, and care about the user experience as much as the latency; be excited by getting into the codebase; when something breaks at midnight you fix it before messaging anyone; you see ambiguity as a challenge, not a blocker. You will be ownership-oriented, obsessed with quality, user-driven, eager to get in front of customers, exceptionally driven, hungry, passionate, personable. Tech stack: TypeScript, Next.js, Turborepo, AWS, Terraform, Langchain, OpenAI integrations What you can expect: Equity and compensation that exceeds market standard Fully expensed hardware to match your ambition Late-night Ubers, breakfast, dinner (if youre in-office) Interviews are already underway. Were hoping you will be available to start November / December.