Senior Software Engineer - Trading Technology Infrastructure
Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Apr 27, 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
The Trading Technology Infrastructure team at Millennium is responsible for providing shared services to internal trading systems, including our strategic trading platform. We are seeking a senior developer to join our global development team in the buildout of our real-time data distribution system and a new sequencer-based trading platform. This role will be involved in building the services and infrastructure required for these applications.
This role is based in Singapore and will work with teams locally in Singapore as well as the global team based in the United States. The role will also include escalation support for applications and services during Asia trading hours.
What You'll Do
Software Development: Contribute to the design, development, and maintenance of scalable, real-time transactional systems and services that support our strategic trading architecture and sequencer platform.
Collaboration: Work closely with other technology teams across the Millennium technology organization (Singapore and US) to ensure seamless integration and communication.
Escalation Support (Asia Hours): Act as an escalation point for applications and services during Asia trading hours, helping diagnose and resolve production issues.
Quality Code: Deliver high-quality, well-tested code with quick turnaround times, adhering to best practices and coding standards.
Continuous Improvement: Take ownership of projects and proactively suggest and implement improvements across the infrastructure and tooling.
What You Bring
Technical Proficiency: Proven experience building scalable, real-time transactional systems in C++ and/or Java.
Programming Experience: 7+ years of professional software development experience with C++ and/or Java, plus working knowledge of Python for tooling, automation, or services.
Database Knowledge: Proficient in database concepts, including both SQL and NoSQL technologies.
Algorithms and Data Structures: Strong understanding of algorithms and data structures; experience with performance and reliability in low-latency or high-throughput environments is a plus.
AI / Automation: Experience applying AI/ML or modern automation techniques (e.g., intelligent monitoring, anomaly detection, code or test generation, or data-driven optimization) to improve reliability, performance, or developer productivity.
Communication Skills: Strong written and verbal communication skills for effective interaction with team members and stakeholders across regions (Asia and US).
Self-Starter: Critical thinker who takes ownership of projects, works effectively in a globally distributed team, and suggests improvements for the broader infrastructure.
Continuous Deployment: Experience in building systems with continuous deployment, CI/CD pipelines, and automated testing.