Core AI Engineer: Enterprise AI Solutions

London Stock Exchange Group; Greater London; On-site; GBP 120,000 - 150,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Paid volunteering days

Wellbeing initiatives

Job summary

London Stock Exchange Group (LSEG) is seeking a Core AI Engineer to design, build and deploy enterprise-scale AI solutions across the organisation. You will combine software engineering, machine learning and AI platform expertise to turn innovative concepts into production-ready products delivering measurable business value.

This hands-on role requires deep technical curiosity, strong ownership, and the ability to influence architecture and engineering practices across teams while mentoring

Qualifications

• Extensive software engineering experience delivering production-scale solutions.
• Experience building AI or machine learning systems in enterprise environments.
• Experience moving AI solutions from proof-of-concept into production.
• Strong understanding of software architecture, engineering standards and operational practices.
• Ability to influence technical direction across teams without formal management responsibility.

Responsibilities

• Design, develop and deploy enterprise-grade AI products and services.
• Build agentic AI workflows, retrieval-augmented generation (RAG) solutions and intelligent automation capabilities.
• Deliver scalable integrations with LLMs, MCP services, vector databases and enterprise platforms.
• Develop reusable AI frameworks, accelerators and engineering standards.
• Lead technical implementation across multiple AI initiatives.
• Define solution architecture and engineering patterns for AI products.
• Build robust APIs, orchestration services and automation pipelines.
• Drive non-functional requirements including security, scalability, resilience and observability.
• Partner with Product Managers, Data Scientists and Engineering teams to deliver AI solutions from concept through production.
• Support the development of AI platforms that enable wider engineering adoption.
• Establish monitoring, evaluation and governance processes for AI systems.
• Improve reliability and performance of deployed AI capabilities.
• Act as a technical leader across AI initiatives.
• Mentor engineers and contribute to the development of AI engineering capability.
• Evaluate emerging AI technologies and identify opportunities to accelerate delivery.
• Provide technical direction on architecture, tooling and engineering practices.

Skills

Software engineering

AI/ML systems

Production-scale delivery

Architectural influence

Stakeholder engagement

Job description

London Stock Exchange Group (LSEG) is seeking a Core AI Engineer to design, build and deploy enterprise-scale AI solutions across the organisation. You will combine software engineering, machine learning and AI platform expertise to turn innovative concepts into production-ready products delivering measurable business value.

This hands-on role requires deep technical curiosity, strong ownership, and the ability to influence architecture and engineering practices across teams while mentoring