Server-Side Engineer (C++) - Pre-Trade Risk Technology
at Millennium
Posted 19 hours ago
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**Server-Side Engineer (C++) - Pre-Trade Risk Technology** Join Millennium, a global alternative investment firm, as a Server-Side Engineer on our Pre-Trade Risk Technology team. Key responsibilities include managing a latency-sensitive, distributed system that monitors trading flow, calculates risk metrics, and blocks trades across global markets and multiple asset classes. Required expertise: Proven proficiency in C++. Experience with high-throughput, low-latency systems and data structures, along with a solid understanding of trading infrastructure and risk management. Familiarity with sequencer-based bus architectures is beneficial. Apply your skills to update our order management systems (OMSs) and integrate new components into the risk controls. This role demands a Senior level with a strong background in C++, and experience infinancial trading systems.
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
We are seeking a Server-Side Engineer to join the Pre-Trade Risk Technology team. The team manages a latency-sensitive distributed system responsible for monitoring high-throughput trading flow, calculating aggregate risk metrics across hundreds of venues, and blocking trades in real time to prevent control violations. The platform operates across global markets and supports multiple asset classes.
The firm is undertaking several initiatives to update its order management systems (OMSs) toward next-generation, sequencer-based bus architectures with many components written in C++. Our risk controls systems must integrate efficiently with these new OMSs, including adding new components to the bus. Our existing infrastructure is primarily written in Java, and we are seeking candidates with experience in both languages.
This role will also support the buildout of new controls, particularly for Asian markets.
What You'll Do
- Design and implement high-throughput / low-latency software to catch and prevent trading errors of millions of orders daily
- Take ownership of your code: from implementation and test automation to deployment and operational support (3rd level only)
What You Bring
- 5+ years strong C++ server-side development experience on Unix/Linux
- Experience with Java server-side development
- Ability to partner effectively with business stakeholders and translate requirements into technical solutions
- Experience designing and implementing front-office trading systems
- General market knowledge of equities, fixed income and/or other asset classes
- Strong Experience utilizing AI (Claude Code, GitHub Copilot, etc.) to drive the software development lifecycle
- Experience with KDB is preferred
- Experience with sequencer technologies and Aeron is desired
