Location
London

Hours
Full Time

Salary
Negotiable

About the Role
This is an individual contributor role responsible for the design, development, and delivery of high‑quality software solutions using C++ and Java within a defined product, platform, or client solution area. The role emphasizes hands‑on engineering, strong ownership of medium‑to‑large technical components, and adherence to established architectural and engineering standards. You will collaborate closely with senior engineers, architects, product managers, and delivery teams to implement technical changes that improve business and client outcomes. While not an architect or people manager, the role requires strong technical judgment, mentoring of junior engineers, and meaningful contribution to solution design and delivery excellence.

Key responsibilities include designing, developing, and maintaining C++ and Java applications and services to deliver robust, performant, and maintainable solutions. You will implement technical changes and enhancements to improve platform stability, scalability, and client outcomes, collaborate with product owners and business partners to translate requirements into effective technical designs, and build solution‑level extensions and component enhancements in line with LSEG architectural principles and coding standards.

You will take technical ownership of key components, ensuring high code quality, strong test coverage, and operational readiness. Supporting the full software lifecycle, you will diagnose and resolve complex issues, participate actively in code reviews and design discussions, and provide technical guidance and mentoring to junior engineers. Adherence to SDLC standards, engineering controls, and quality metrics is essential to maintain healthy team engineering baselines.

Joining LSEG means being part of a global financial markets infrastructure and data provider dedicated to driving financial stability, empowering economies, and enabling sustainable growth. You will contribute to a culture of innovation, quality, and continuous improvement within a diverse and inclusive workplace.

Experience
- Strong, hands‑on software engineering experience in C++ and Java, with a proven track record of designing and delivering medium‑to‑large scale systems.
- Industry experience at a senior engineer or technical‑lead‑equivalent level.
- Solid understanding of object‑oriented design, data structures, algorithms, concurrency, memory management, and system integration.
- Experience building and supporting distributed systems, including messaging, APIs, and inter‑service communication.
- Familiarity with Linux environments, build tools, version control systems, and automated testing frameworks.
- Experience with modern engineering practices such as CI/CD, performance tuning, and observability.
- Exposure to cloud platforms and open‑source technologies, and integrating them into enterprise systems.
- Strong understanding of the full software development lifecycle (SDLC) and associated tools and processes.

About you
- Strong communication and collaboration skills, with the ability to influence technical outcomes without formal authority.
- Demonstrates strong technical judgment and ownership.
- Able to mentor junior engineers and contribute to continuous improvement.
- Motivated to work in a dynamic, innovative, and inclusive environment.

Qualifications
Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.