Lseg
Lead ML Engineer
GBR-London-5 Canada Square
Sponsorship not specifiedDetected 7 days ago
PythonFastAPIKubernetesAPI DevelopmentRESTMachine LearningLLMsRAGAgentic AI
About the role
- Rather than delivering individual business use cases end‑to‑end, the team enables product engineering groups across LSEG to expose knowledge, data, and actions to AI agents in a consistent, governed, and repeatable way.
- If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.
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.
- 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.
- Collaborate with Quality Engineers and SREs to ensure solutions meet quality, governance, and operational readiness expectations.
- CE AI owns and operates core AI platforms including LSEG AI Assist, the Question Answering Service (QAS), and the Internal MCP Gateway.
- Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.
- We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives.
- Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence.
Skills
- 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:
- London Stock Exchange Group (LSEG) Information:
- LSEG is a leading global financial markets infrastructure and data provider.
- Colleagues can get involved through fundraising and volunteering.
Benefits
- LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.
Company info
- Building and operating LSEG AI Assist, an in‑house agentic experience capable of reasoning, planning, and tool‑calling.
- Operating QAS, the enterprise RAG and search layer used to ground agent responses in approved data sources.
- Delivering a production Internal MCP Gateway providing discovery, security, policy enforcement, observability, and lifecycle management for MCP tools and Skills.
- Designing and building MCP servers and Skills that expose internal and vendor systems safely to agents.
- Establishing evaluation, quality control, and governance mechanisms so MCP tools and Skills can be promoted through PTB/PTO and operated with confidence at scale.
- The Corporate Engineering AI team 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.
- Join us and be part of a team that values innovation, quality, and continuous improvement.
- Our purpose is the foundation on which our culture is built.
- Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day.
- They go to the heart of who we are and guide our decision making and everyday actions.
- Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries.
- We are proud to be an equal opportunities employer.
- You will be part of a collaborative and creative culture where we encourage new ideas.
Equal opportunity
- However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.
This listing is sourced directly from Lseg's careers page and normalized into a canonical job model.