# High-Frequency Trading System Engineer (USA)

**Company:** [Trexquant](https://hotfix.jobs/companies/trexquant)
**Location:** Stamford, CT, New York, NY
**Role:** Backend Engineering
**Salary:** $175k – $200k/yr
**Skills:** C++, Linux, Low-Latency Systems, Memory Management, Concurrency, Performance Optimization, Profiling Tools, Tcp, Udp, Multicast, Ethernet, Low-Latency Messaging
**Posted:** 2026-04-28

> Designs and develops ultra-low-latency high-frequency trading infrastructure in C++ and Linux. Optimizes performance across hardware/software layers and collaborates with quants for trading systems impact.

## Job Description

## 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.

## Requirements
- **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.

**Base salary range: $175,000 - $200,000** depending on candidate's educational and professional background. Base salary is one component of total compensation, which may also include discretionary, performance-based bonus. Position is overtime-exempt.

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