AI Engineer - LLM and Agentic Systems London - Hybrid. Circa £500 - £675 per day (and negotiable DOE) Contract (Outside IR35) Mid-level, Senior and Lead. Agentic AI / Machine Learning. Company: Our client is a globally established data and information services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you''ve built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you''ll be working on as an AI Engineer - LLM and Agentic Systems: Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to solve real, complex business problems. Owning delivery end-to-end - from initial exploration through to production deployment, integration and ongoing iteration. Working with MCP-style architectures (FastMCP/FastAPI) and LangChain/LangGraph or equivalent frameworks to build reliable, scalable systems. Integrating AI into products, APIs and core business workflows - with a sharp eye on latency, cost and real-world usability. Collaborating closely with engineering teams to ensure systems are observable, maintainable and built to last. You''re ..... full job details .....