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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.

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