Founding Senior Engineer, AI Agent Platform

Jack & Jill is looking for a Founding Senior Full-Stack Engineer to join their stealth-stage AI coordination startup in Greater London. This position requires proven senior-level experience in TypeScript, React, and Node.js, along with expertise in large language model orchestration. You will drive the development of innovative agent systems, optimize front-end performance, and work directly with founders to establish the technical foundation of the company, which is backed by top-tier global VCs.#J-18808-Ljbffr…