Senior C/C++ Low Latency Engineer

Mathrix in Zug, CH, seeks a Senior C/C++ Low Latency Engineer for a full-time onsite role. The position involves developing and optimizing high-performance trading systems with a focus on low latency, within a small, hands-on technology team.

This role is central to Mathrix’s operations, supporting the company’s performance through high-efficiency data processing pipelines. In a small, flat-structured team, the engineer will have broad responsibilities and direct impact, working across hardware, networking, and data systems to ensure speed and quality. The company prioritizes being faster than competitors and maintains a hands-on, performance-driven culture.

Responsibilities

• Build, test, monitor, and maintain large-scale parallel applications and databases.
• Develop code to enable automated trading on global exchanges.
• Optimize software for minimal latency.
• Create low-latency networking code for fast exchange communication.
• Design and implement code that avoids context switches.
• Create custom data storage structures with minimal memory footprint.
• Develop data pipelines using streaming architecture.
• Implement trading logic with minimal computational overhead.
• Re-implement existing code using CPU SIMD features for performance gains.
• Build and maintain global hardware infrastructure for trading operations.

Requirements

• Deep and comprehensive knowledge of C and C++ on Linux systems.
• Ability to understand and verify the assembly output generated by the compiler.
• Understanding of GNU/Linux system calls and their performance implications.
• Familiarity with x64 hardware and efficient utilization techniques.
• Knowledge of selecting or designing storage structures based on time complexity needs.
• Proficiency with debuggers and profilers for performance analysis.
• Experience with version control (git) and technical documentation.
• Ability to share knowledge with and learn from the team.
• Proactive, self-motivated, honest, flexible, and resilient under pressure.

Nice to have

• Experience in network engineering, including low-latency hardware deployment or protocol implementation.
• Background in Big Data engineering and familiarity with best practices for different use cases.

What the company offers

• Competitive salary with discretionary bonus.
• Engaging and motivating work environment.
• Collaboration with experienced and skilled colleagues.
• 25 vacation days per year.
• Additional perks: regular team dinners, Friday afternoon drinks, annual office trips, weekly massages, and monthly meal allowance.

About the company

Mathrix operates with a small, flat-structured technology team that emphasizes hands-on work and performance excellence. The company values speed, quality, and a proactive, self-starting attitude, fostering a culture of continuous improvement and technical rigor.

• Flat hierarchy with direct responsibility and hands-on involvement.
• Commitment to outperforming competitors through speed and quality.
• Team values proactivity, self-initiative, honesty, flexibility, and stress resilience.