Senior Full-Stack Engineer (Backend-Leaning) – SaaS AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding) to help build, define, and scale. Comp: Up to £100k strong early stack equity package What you’ll do Full-stack engineering, backend-leaning (Next.js FE BE, Node.js, TypeScript, legacy Python) Collaborate with product & CEO to shape the roadmap Help guide a small, senior team Work on AI / agentic systems integration Setup Hybrid: 2 days/week in Moorgate Small, flat team with fast decisions If you’re a hands-on engineer who loves building SaaS products with AI, let’s chat! Senior Full-Stack Engineer (Backend-Leaning) – SaaS AI