Functional Programming Engineer - AI Platform Hybrid (London HQ) | £100k-£140k + Equity We’re partnered with a rapidly scaling AI company building cutting-edge platforms that help professionals across legal, finance, insurance, and accounting harness the power of AI to work faster, smarter, and with total confidence in the results. This team is on a mission to make AI truly trustworthy - enabling complex, multi-modal data to be transformed into accurate, verifiable outputs with transparent logic for full compliance and auditability. Backed by world-class investors and AI pioneers, they’re building something game changing. The Opportunity Joining a small, high-performing engineering team, you’ll play a key role in developing their core AI platform. This isn’t just about writing code - you’ll have ownership over planning, testing, and scaling systems that meet challenging multi-tenant usage patterns. You’ll collaborate closely with Product and Design to ship features daily, working at the cutting edge of AI to deliver APIs and tools used by some of the world’s leading organisations. What You’ll Be Doing Scaling the platform to handle large-scale, multi-modal data with state-of-the-art foundation models (GPT-4.1, Claude 4, Gemini 1.5, and beyond). Building a rich suite of APIs powering both internal systems and ...