684 Senior Ai Engineer jobs in London

I’m working with a leading investment firm that is building out a new AI capability and looking for a Senior AI Engineer to join the team.

This is a genuinely hands-on role for someone who wants to build production AI systems rather than spend their time creating proofs of concept. You’ll have ownership from idea through to deployment, working across RAG, agentic AI and LLM applications .

What you’ll be doing

• Building and owning production-grade RAG pipelines
• Designing agentic and multi-agent systems , including tool use, memory and orchestration
• Building LLM-powered applications using OpenAI, Anthropic and open-source models
• Developing Python APIs and backend services
• Improving AI reliability through evals, guardrails, observability and testing
• Working with vector databases, Graph DBs and unstructured data

What they’re looking for

• Strong Python/software engineering background
• Commercial experience taking AI/LLM systems into production
• Hands-on experience with RAG and/or agentic AI
• Experience with tools such as LangGraph, LangChain, LlamaIndex, AutoGen or similar
• Someone entrepreneurial who enjoys experimenting, taking ownership and building from the ground up

This is a great opportunity to join an AI function while it’s still being shaped, with the freedom to influence how AI is built and used across the business.