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# C++ HFT Developer

- **Company:** Selby Jennings
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £89,283.0
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Computer Networks, Memory Management, Fault Tolerance, Performance Tuning, System Programming, Transmission Control Protocol (TCP), Multithreading, Concurrency, Linux Development, Low Latency, C++14
- **Published:** July 24, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5811134945

## About the Role

* Expert-level C++ development experience, including modern C++ standards (C++17 or later).
 * Strong background in low-latency and high-performance systems programming.
 * Deep understanding of networking concepts, including TCP/UDP, concurrency, and multi-threading.
 * Extensive Linux development experience and performance optimisation expertise.
 * Experience building real-time, high-throughput systems where performance is business-critical.
 * Previous exposure to trading technology within crypto, capital markets, electronic trading, or other performance-sensitive environments.

Ideal Profile

 * Exceptional academic or technical background.
 * Strong analytical and problem-solving abilities.
 * Comfortable operating in fast-paced, real-time environments.
 * Collaborative mindset with a passion for solving complex engineering challenges.

Culture

 * Ownership and accountability
 * Intellectual curiosity and continuous learning
 * Clear, direct communication
 * Teamwork and shared success

## Description

* Design, develop, and optimise low-latency trading infrastructure using modern C++.
 * Build scalable systems supporting trading, execution, and risk management workflows.
 * Develop and maintain exchange connectivity for market data and order entry.
 * Optimise CPU utilisation, memory management, and multi-threaded applications.
 * Work closely with quantitative researchers, traders, and infrastructure engineers to improve system performance.
 * Profile, benchmark, and troubleshoot real-time applications to minimise latency and maximise throughput.
 * Build robust, fault-tolerant systems that support continuous trading operations.


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