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# High-Frequency Trading System Engineer (USA)

- **Company:** Trexquant Investment
- **Location:** Stamford, CT, United States
- **Salary:** $175,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Profiling, Microarchitecture, Linux, Memory Management, Ethernet, Network Interface Controllers, High-Frequency Trading, Multicasting, Network Interface, Network Protocols, Performance Tuning, Transmission Control Protocol (TCP), Concurrency, Low Latency
- **Published:** July 31, 2026
- **Apply:** https://www.juju.com/job/00000000gknlgt

## About the Role

+ 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.

## Description

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.


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