Low-Latency Developer

About the role

About us:

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies, is looking for a Low-Latency Developer to join our team.We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort.

Position Highlights:

We are modernizing our trading and research platform to scale our alpha trading business. This platform will enable researchers to explore, test, and deploy sophisticated signals, models, and strategies across asset classes in a robust, fully automated manner while maintaining competitive latency targets. As a Low-Latency Developer, you will be responsible for designing, optimizing, and maintaining high-performance trading systems to minimize latency.

Your Mission and Goals:

- Analyze and optimize the performance of low-latency trading systems by identifying bottlenecks and inefficiencies in the code, and implementing effective solutions

- Develop and adapt the platform to support the demands of a fast-paced trading environment, while effectively managing technical debt

Requirements:

- Over 5 years of experience as a low-latency developer with a focus on performance optimization in a high-frequency trading (HFT) environment

- Experience with multiple components of an HFT platform or system, particularly those on the critical path

- Experience working at an HFT firm during its startup phase and/or on a trading team is a significant plus

Technical Skills:

- Deep knowledge of HFT platforms: networking, kernel bypass, market data, order entry, threading, inter-process communication, and strategy APIs

- Proven low-latency development and performance optimization in HFT

- Strong proficiency in C++

- Excellent understanding of CPU caches and cache efficiency

- Experience with multithreaded and multi-process synchronization

- Good understanding of networking protocols

- Skilled in performance profiling and optimization tools

- Advanced knowledge of Linux operating systems, including kernel-level device mechanisms

- AI & Productivity Tools: Demonstrated ability to effectively leverage modern AI tools (e.g., generative AI, code assistants, research and productivity tools) to improve quality, speed, decision-making, and workflow efficiency while maintaining strong judgment, accuracy, and ownership of outcomes

About You:

- Practical decision-making skills

- Excellent communication skills

- Strong analytical and problem-solving skills