High-Frequency Trading System Engineer (USA)

We are seeking a highly skilled C++ engineer with extensive experience in high-frequency trading systems to join our trading team. In this role, you will design and develop ultra-low-latency trading infrastructure. You’ll work closely with quantitative researchers and fellow technologists to build cutting-edge HFT systems that have a direct impact on our trading performance. Responsibilities Lead the design and development of low-latency, high-frequency trading (HFT) systems. Evaluate the existing execution platform and develop plans for a comprehensive revamp. Optimize system performance across hardware and software layers, including CPU architecture, memory/cache utilization, and network interfaces (NICs). Ensure a clean, well-tested, and thoroughly documented codebase. Qualifications Expert-level proficiency in C++ and Linux, with a deep understanding of low-level memory management, concurrency, and performance optimization. Proven experience developing ultra-low-latency, high-throughput systems, preferably in trading or other real-time environments. Strong knowledge of profiling tools and techniques for latency measurement and benchmarking. Hands‑on experience with network protocols (TCP/UDP, multicast, Ethernet) and low‑latency messaging systems. Exceptional analytical and problem‑solving skills. Benefits Competitive base salary with guaranteed and performance-based bonuses tied to individual and company results. Collaborative, friendly, and results‑oriented work environment. Full coverage of PPO health, dental, and vision insurance premiums for you and your dependents. Pre‑tax commuter benefits. Additional company perks. Applications are open for both Stamford and New York City offices, the latter with a planned opening in October 2026. The base salary range is $175,000 - $200,000 depending on the candidate’s educational and professional background. Base salary is one component of Trexquant’s total compensation, which may also include a discretionary, performance‑based bonus. This position is classified as overtime‑exempt. Trexquant is an Equal Opportunity Employer #J-18808-Ljbffr Trexquant-Investment-Lp