Senior ML Engineer

Senior ML Engineer

Full-Time No working from home possible
London Stock Exchange Group

ML Engineer

Corporate Engineering AI (CE AI) is the central enablement and platform delivery function for LSEG’s internal agentic AI ecosystem. The team’s mission is to scale safe, high‑quality AI capabilities across the enterprise by providing shared platforms, patterns, governance, and delivery support. It owns core AI platforms such as LSEG AI Assist, the Question Answering Service (QAS), and the Internal MCP Gateway, enabling product engineering groups to expose knowledge, data, and actions to AI agents in a consistent, governed, and repeatable way.

Responsibilities

  • Design and build MCP servers and tools that expose enterprise systems and workflows to AI agents.
  • Implement Skills that orchestrate tools, data, and reasoning into repeatable, governed workflows.
  • Contribute to the LSEG AI Assist agentic harness, including planning, tool‑calling, and orchestration logic.
  • Build secure API wrappers where backend systems lack suitable authentication or entitlement models.
  • Work closely with product teams in a “build for” capacity, transferring knowledge and establishing reusable patterns.
  • Shape the developer experience for MCP and Skills, including templates, contribution guidance, and standards.
  • Collaborate with Quality Engineers and SREs to ensure solutions meet quality, governance, and operational readiness expectations.

Skills & Qualifications

  • Strong Python development experience.
  • Hands‑on experience with LLM and agent frameworks and agentic reasoning patterns.
  • Practical understanding of Model Context Protocol (MCP), including server and tool patterns.
  • FastAPI and REST API design and implementation experience.
  • Experience with prompt engineering and RAG‑based architectures.
  • Containerisation and Kubernetes‑based deployment experience.
  • Ability to work across platform, product, and governance boundaries in an enterprise environment.

Career Stage: Manager

Location: London, United Kingdom

Equal Employment Opportunity Statement

We are a proud equal opportunities employer. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy, disability, or any other basis protected under applicable law. We are committed to accommodating applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs, in accordance with applicable law.

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Senior ML Engineer employer: London Stock Exchange Group

At London Stock Exchange Group, we pride ourselves on being an exceptional employer that champions innovation and sustainability. Our collaborative work culture fosters professional growth, offering employees ample opportunities to develop their skills in a dynamic environment focused on sustainable investment. Located in the heart of London, we provide a vibrant workplace with access to industry-leading resources and a commitment to making a positive impact in the financial sector.

London Stock Exchange Group

Contact Details:

London Stock Exchange Group Recruitment Team