Senior Java Engineer – AI-Driven Financial Platforms

London Stock Exchange; Greater London; On-site; GBP 110,000 - 140,000; Full time

Job summary

London Stock Exchange Group (LSEG) is seeking a Senior Java Engineer to help build and scale the new Index platform for FTSE-Russell. You will design, implement, and maintain high‑performance backend services in Java and Python, collaborating with global teams.

You will lead technical initiatives, review code, and mentor juniors while ensuring robust production support and secure, compliant solutions for financial market data.

Qualifications

• 10+ years of backend software engineering experience.
• Strong Java and Python development skills.
• Experience with microservices, REST APIs, and scalable systems.
• Financial services domain familiarity is a plus.
• Mentor junior engineers and lead project priorities.

Responsibilities

• Design, develop, and maintain Java/Python services for the Index platform.
• Lead code reviews and drive quality standards.
• Provide Level 3 production support and issue resolution.
• Collaborate with global teams and AI initiatives.
• Establish automated tests and CI/CD pipelines.

Job description

London Stock Exchange Group (LSEG) is seeking a Senior Java Engineer to help build and scale the new Index platform for FTSE-Russell. You will design, implement, and maintain high‑performance backend services in Java and Python, collaborating with global teams.

You will lead technical initiatives, review code, and mentor juniors while ensuring robust production support and secure, compliant solutions for financial market data.