Principal AI Engineer
Location
london, england
Job Type
Full-time
Category
Engineering
Posted
June 14, 2026
Company Overview
LSEG (London Stock Exchange Group) is a diversified global financial markets infrastructure and data business dedicated to excellence and open‑access partners. With a heritage of 300+ years, LSEG enables businesses to fund innovation, manage risk and create jobs worldwide.
Role Summary
The Principal AI Engineer is a senior technical expert responsible for designing, developing, and delivering high‑quality software solutions, with a focus on AI technologies such as prompt engineering and large language models (LLMs). The role emphasizes deep technical proficiency, innovation, and hands‑on development across scalable, secure, and performance‑critical systems.
Responsibilities
- Software Development
- Design and implement complex, scalable, and secure applications.
- Write clean, efficient, and maintainable code in Java, Python, and other high‑level languages.
- Technica...