Lead Java Developer

Business Unit: FTSE Russell – Index Platform

Company: London Stock Exchange Group (LSEG)

We are seeking a highly skilled and hands‑on Lead Java Engineer with AI proficiency to help build the next generation FTSE Russell Index Platform. This platform underpins the calculation and distribution of FTSE Russell’s global family of indexes and requires advanced engineering, high precision data processing, and deep collaboration across global teams. This is a deeply technical role focused on designing, building, integrating, and operationalising modern software and AI‑driven capabilities across internal platforms and client‑facing products. You will work with innovative technologies, contribute to complex algorithmic design, and drive engineering excellence in a high‑performance, data‑intensive environment.

Key Responsibilities

• Design, develop, and maintain complex Java and Python applications using mo...