Top Tech Jobs & Startup Jobs in London

Build and own backend platform systems around AI models: design APIs, data models and schemas, implement integrations and data pipelines, create internal libraries/tooling, and drive features end-to-end from design to production while collaborating with engineers and AI specialists.

Build high-quality user-facing experiences primarily in TypeScript and React; influence frontend architecture and product design; own tasks end-to-end; collaborate with designers and AI experts; build component libraries and internal tooling; debug backend issues encountered in development; set technical direction and establish engineering conventions.

Design, build, and ship production LLM-based systems and agentic workflows. Develop core learning libraries, human-in-the-loop feedback loops, confidence scoring, and scalable agent orchestration. Work with enterprise customers to prototype, deploy, and generalize solutions back into the platform.

As an early Account Executive, you'll build and own a pipeline of mid-market and enterprise accounts, run the full sales cycle from prospecting to close, design paid pilots with the technical team, engage CTO/CIO-level buyers, and help create repeatable sales processes and product feedback loops.

Build and own full-stack platform systems around AI models: design APIs, database schemas, frontend components, shared libraries, connectors, and data pipelines. Collaborate with design and AI teams, drive features end-to-end from design to production, and shape technical direction and engineering practices.