Software Engineer
Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Oct 15, 2026. Millennium Management scores A on the Alion truth index.
About Millennium
Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium's mission is to deliver results for our investors.
Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.
Meet the Team
Core to the health and growth of Millennium's business, the firm's active, multi-manager model demands flexible, scalable technology and advanced proprietary systems, including the development of the next generation of analytical and trading capabilities. The Fixed Income & Commodities IT team is responsible for the Trading Applications that deliver live risk and profit and loss (P&L) to drive Fixed Income and Commodities trading. Our applications are used by a wide range of users, primarily Portfolio Managers and Risk Managers, as well as trade support functions such as Middle Office and Valuations.
What You'll Do
- Collaborate with portfolio management, risk, and engineering teams on application development, deployment, and architecture
- Work closely with quants, risk managers, and engineers across the globe to develop compute-intensive applications for quantitative modeling that process thousands of datasets
- Optimize the platform using network and systems programming and other advanced techniques to minimize latency
- Automate system maintenance tasks, end-of-day processing jobs, data integrity checks, and bulk data loads and extracts
- Maintain, support, and improve application capabilities as new requirements arise
- Partner with project managers and senior leadership to capture analytic requirements, monitor delivery, and manage expectations
- Deliver timely solutions to portfolio and risk managers within the firm, in keeping with Millennium's active culture.
What You Bring
- 3-5 years of professional development experience using Java or C++, and ideally 1 year of professional experience working with Rust
- Strong SQL and database experience, particularly with DuckDB, Postgres, and RDBMS
- Experience with containerization, ideally Kubernetes and ArgoCD
- Experience with scaled architectures, performance analysis, and optimization of backend systems
- Bachelor's or Master's degree in Computer Science or another scientific field
- Strong analytical, problem-solving, and communication skills, with the ability to work independently in a fast-paced environment
- Detail-oriented and organized, with thoroughness and strong ownership of work
- Preferred: experience with Apache Kafka, Arrow, Parquet, and/or Avro, and with cloud technologies, ideally AWS and/or GCP