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Client: Techfellow Limited

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Views: 3

Posted: 16.05.2025

Expiry Date: 30.06.2025

[Up to c. £350k Comp Package (or equivalent) | Flexible Working Options - On-Site Preference]

Are you a C++ expert with a passion for building ultra-low-latency trading infrastructure? Our client, a global quantitative trading firm, is searching for a Core C++ Developer to push the boundaries of high-performance computing. This role offers the chance to optimise execution speed, enhance system scalability, and collaborate with top-tier engineers to develop trading systems at the cutting edge of technology.

• Design and optimise high-performance, low-latency trading infrastructure in modern C++ (C++17/20)
• Develop and fine-tune order execution and risk management systems, ensuring robustness and efficiency
• Optimise CPU performance, memory management, and multi-threaded applications for peak efficiency
• Implement and refine networking performance, including TCP/UDP tuning and kernel bypass techniques (AF_XDP, DPDK)
• Benchmark, profile, and debug real-time systems, reducing latency and maximising throughput
• Collaborate with quantitative researchers, traders, and infrastructure engineers to improve execution speed
• Ensure fault tolerance and system resilience, maintaining seamless operation for continuous trading

• 3+ years of experience in high-performance, low-latency C++ development
• Proven ability to optimise network performance (TCP/UDP), including kernel bypass
• Expert-level proficiency in modern C++ (C++17/20) and deep systems programming knowledge
• Strong experience in multi-threading, concurrency, and Linux-based performance tuning
• Hands-on experience with real-time, high-throughput systems in a latency-sensitive environment
• (Preferred) Familiarity with C# code generation for trading infrastructure automation
• (Preferred) Experience with AWS cloud environments, on-prem clusters (HTCondor), or quantitative trading systems