ML Engineer – LSEG

Machine Learning/AI Engineer | £850/day Inside IR35 | 6-month initial contract | London

Industry: Technology
Location: London
Job Type: Contract – 6-month initial

This programme delivers a production-grade enterprise agentic AI platform, with MCP as the extensibility layer.

Responsibilities

• Design and build MCP servers and tools that expose enterprise systems and workflows to AI agents.
• Implement Skills that combine tools, data, and reasoning into structured, repeatable, and governed workflows.
• Contribute to the internal AI assistant’s agentic framework, including planning, tool invocation, and orchestration logic.
• Develop secure API wrappers for systems that lack appropriate authentication, authorisation, or entitlement mechanisms.
• Work closely with product engineering teams in a “build-for” model, transferring knowledge and establishing reusable engineering patterns.
• Shape the developer experience for MCP and Skills, including templates, contribution standards, and documentation.
• Collaborate with Quality Engineering and SRE teams to ensure solutions meet requirements for reliability, governance, and operational readiness.

Skills & Experience Required

• Strong Python development experience in production environments.
• Hands-on experience with LLMs, agent frameworks, and agentic reasoning patterns.
• Practical understanding of Model Context Protocol (MCP), including tool and server design patterns.
• Experience building REST APIs, ideally using FastAPI.
• Familiarity with prompt engineering and retrieval-augmented generation (RAG) architectures.
• Experience with containerisation and Kubernetes-based deployment environments.
• Ability to operate across platform, product, and governance boundaries in large enterprise settings.