Software Engineer
Meet the Team Core to the health and growth of our business, Millennium’s Information Technology team supports the firm’s active, multi-manager business model through flexible, scalable technology and advanced proprietary systems.
Meet the Team Core to the health and growth of our business, Millennium’s Information Technology team supports the firm’s active, multi-manager business model through flexible, scalable technology and advanced proprietary systems. The team develops next-generation analytical and trading capabilities, including high-performance infrastructure that supports central trading teams and enables execution across businesses and regions.
What You'll Do
Design, develop, and maintain low-latency C++ execution algorithms, order management systems, strategy containers, connectivity, and messaging systems.
Partner directly with central trading teams to optimize execution performance across businesses and regions.
Reduce system latency using advanced network and systems programming techniques and other performance-focused methodologies.
Build systems, interfaces, and tools for historical market data analysis and trading simulations to improve research productivity and system testability.
Develop and maintain automated tests, performance benchmarking frameworks, and internal engineering tools.
Collaborate with trading teams in a fast-paced environment to gather requirements and deliver effective, timely solutions.
What You Bring
Bachelor’s degree in Computer Science or a related field.
10+ years of professional software development experience, including at least 5 years in a front-office financial services environment.
Strong expertise in data structures, algorithms, and object-oriented programming in C++.
Proficiency with C++17 and C++20, multithreading, and asynchronous programming environments.
Strong understanding of low-latency and real-time system design and implementation.
Deep knowledge of Linux system internals and networking.
Strong financial markets experience across multiple asset classes, with a focus on real-time, low-latency trading systems for equities and futures.
Proficiency using LLM-based tools to accelerate development, improve code quality, and enhance productivity; working familiarity with Python for quantitative research, data-oriented processing, and execution algorithm performance analysis.
Millennium offers a total compensation package which includes a base salary, discretionary performance bonus, and comprehensive benefits. The estimated base salary range for this position is $175,000 to $250,000, which is specific to New York and may change in the future. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package.
Posted July 27, 2026