full-time
Senior C++ Developer | HFT Trading Systems
Selby Jennings
- Employer
- Selby Jennings
- Location
- London
- Working pattern
- on-site
About the role
Design, build, and optimize low-latency trading systems and infrastructure, including exchange connectivity, order routing, risk controls, and real-time state handling. Collaborate with researchers, portfolio managers, traders, and engineers to deliver reliable production systems, improve performance, and support platform evolution and on-call operations. Requires expert-level modern C++ and production experience building and optimizing low-latency, high-throughput systems, ideally in a trading environment. Candidates should have strong foundations in algorithms, data structures, distributed systems, Linux and networking, performance profiling, testing, CI/CD, and fault-tolerant design; Python or another modern language is also expected.