Senior C++ Software Developer – STL – UNIX - London. - Tier-1 electronic trading organisation seeks to hire a Senior C++ Software Developer to join their London or Chicago team as part of an expansion plan for 2026. The Senior C++ Software Developer with be a key contributor to the enhancement of their electronic trading ecosystem and surrounding electronic trading environment. The client is part of a large investment banking group, one of the largest financial institutions globally.

The Senior C++ Software Developer will:

• Assist engineering manager with growth of the team in London and US office.
• Define and be involved in development projects for their core real-time trading engine.
• Work collaboratively with testing and engineering teams internally and externally.
• Assist with further advancements in platform automation.
• Take ownership of business and technical change requests.
• Design and plan software change documentation.
• Integration testing to ensure high quality QA.

The Senior C++ Software Developer will need to have:

• A STEM background.
• Experience developing electronic trading software is essential for this position.
• Significant experience of C++ development.
• c++ 11-17
• STL experience.
• UNIX environment experience required.
• Experience of electronic trading – exchange trading – low-latency trading - financial-based trading system environments.
• Strong analytical skills for troubleshooting and diagnostic.
• Ability to suggest/research new technologies, and quickly adapt to change.

Future proofing the technology environment is key for this position. They require a Senior C++ Software Developer that can bring new ideas, contribute to projects, assist with the adoption of automation, and help senior stakeholders grow the team.