Salary: £29,000 - 58,000 per year Requirements: C++ software development experience within the financial industry Solid understanding of parallel, asynchronous, and multithreaded programming to build distributed systems Good knowledge of algorithms and data structures Understanding of trading lifecycle, including order capture & execution, allocation workflow, settlement, and compliance requirements Strong technical skills in scripting, Python, C#, SQL or other programming languages Proactive system monitoring and troubleshooting, owning reliability improvements and ensuring successful delivery Responsibilities: Implement solutions using provided exchange SDKs in languages such as C++, Rust, Python, and Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders via protocols like FIX, Websocket, or HTTP requests Optimize exchange communication through kernel bypass and optimizing TLS or connection handling to exchanges Implement trading algorithms based on requirements from traders and quants Acquire and develop trading knowledge to translate requirements into software implementation Continuously improve the stability, reliability, and performance of the trading engine Enhance monitoring and observability in collaboration with the Trading Operations team Technologies: C# HTTP Support Marketing Python Rust SQL TypeScript C++ Network More: We are Certain Advantage, working with a global organization that powers homes, transport, and industries with essential energy. This role is initially a contract position located in London, offering hybrid work arrangements. We strive to connect individuals with impactful career opportunities and support their growth within the finance, marketing, IT, and engineering sectors. last updated 17 week of 2026