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.

• 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.

• 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