IT & Software

Senior Java Engineer

London Stock Exchange Group

London · Greater London · United Kingdom

Overview

In this role you will contribute to building and evolving the FTSE-Russell Index platform within LSEG. You’ll work with a global team to design, develop, and optimize high-precision financial data calculations and services. You will collaborate across product, UX, and engineering to deliver robust, scalable solutions and provide Level 3 production support when needed. This position offers exposure to cutting-edge technology and impactful index-driven products that underpin market infrastructure.

Pay / Benefits
  • healthcare
  • retirement planning
  • paid volunteering days
  • wellbeing initiatives
Responsibilities
  • Design, develop, and maintain complex Java and Python applications and services
  • Architect new or reused systems to drive complex applications
  • Collaborate with Product Managers, UX, and engineers globally
  • Lead requirements gathering, design, testing, and deployment
  • Establish automated tests and ensure robustness, scalability, and security
  • Resolve production issues with root-cause analysis and timely fixes
  • Mentor junior developers and perform code reviews
  • Provide Level 3 production support to minimize business disruption
Key requirements
  • Degree or equivalent experience in Computer Science or Electronics / Electrical Engineering
  • 10+ years of backend software development experience
  • Strong Java core skills and data structures knowledge
  • Proficiency in Python and its libraries/frameworks
  • Experience with relational databases (Oracle/SQL Server/Postgres)
  • DevOps and CI/CD tooling experience (e.g., Jenkins, GitLab)
  • Docker and Kubernetes familiarity
  • Microservices and REST APIs
  • Multi-threading and concurrency understanding
  • Experience with performance optimization and JVM profiling
  • Mentor experience and Scrum/Agile exposure
  • Familiarity with in-memory caching, Kafka, and testing frameworks (BDD)
  • Excellent problem-solving and analytical abilities
  • Results-driven and self-motivated
  • Strategic thinking and change leadership
  • Core Java
  • Python
  • Relational DBs (Oracle/SQL Server/Postgres)

Reference: WJ-747_30165493

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