Core AI Engineer

Company: London Stock Exchange Group
Apply for the Core AI Engineer
Location: London
Job Description:

Overview

As a Core AI Engineer at LSEG, you design, build and deploy enterprise-grade AI solutions that scale across the organization. You will blend software engineering, ML, and AI platform know-how to transform concepts into production-ready products with measurable business impact. You lead technical implementation, shape architectures, and drive AI adoption across teams. This role offers hands-on leadership in a fast-evolving AI and automation program that improves resilience and customer outcomes. You will work closely with Product, Data Science, and Engineering to deliver scalable AI platforms and frameworks.

Pay / Benefits

  • Healthcare
  • Retirement planning
  • Paid volunteering days
  • Wellbeing initiatives

Responsibilities

  • Design, develop and deploy enterprise-grade AI products and services
  • Build agentic AI workflows, 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
  • Translate business challenges into scalable AI solutions
  • Define measurable KPIs and success measures
  • Ensure solutions drive productivity improvements, operational resilience and customer value
  • Partner with stakeholders across Engineering, Operations and Product organizations

Key requirements

  • 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
  • Python and modern software engineering practices
  • Experience with Large Language Models (LLMs) and Generative AI
  • Agent frameworks and orchestration technologies
  • Retrieval Augmented Generation (RAG) architectures
  • API development and microservice design
  • Cloud-native development (Azure preferred)
  • CI/CD automation and MLOps practices
  • Vector databases and knowledge retrieval platforms
  • Data modelling and distributed systems design
  • AI observability, evaluation and governance frameworks
  • Excellent stakeholder engagement and communication skills
  • Collaborative leadership through influence
  • Strong ownership mindset and delivery focus
  • Python
  • LLMs
  • Generative AI

…

Posted: October 1st, 2026