Trading Application Support Analyst - Fixed Income & Commodities

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 Information Technology organization develops flexible, scalable technology and advanced proprietary systems, including next-generation analytical and trading capabilities. Within this organization, the Equities Technology team partners with trading teams, Risk Management, Operations, brokers, external vendors, and technology groups to support proprietary and external trading applications across global markets.

What You'll Do

• Provide Level 1 and Level 2 production support for Fixed Income, Commodities, and FX trading systems, serving as the first point of contact for EMEA trading teams
• Support Millennium’s proprietary electronic and algorithmic trading platform, including testing, requirements gathering, and implementation of algorithms with Portfolio Manager teams
• Resolve trade and application issues across proprietary and external trading platforms, escalating effectively and driving issues through to resolution
• Identify and automate manual processes to improve efficiency, strengthen controls, and streamline trade support
• Manage incidents and changes, while maintaining clear documentation and knowledge base content to enable consistent, timely issue resolution
• Coordinate communications across firm management, brokers, development teams, Risk Management, and Operations
• Coordinate trading platform onboarding with vendors, internal application owners, and trade floor support teams, ensuring applications are installed, configured, and tested effectively
• Manage user onboarding activities, including account setup, permissions, trading limits, test trades, user training, and real-time application monitoring

What You Bring

• 3+ years of experience in trade support or business analysis within a sell-side, buy-side, or trading firm environment
• Experience supporting fixed income and derivatives trading platforms, such as Bloomberg, TT, Tradeweb, BidFX, or WebICE, is a plus
• Exposure to multiple asset classes, including equities derivatives, interest rate derivatives, cash equities, fixed income, and credit, is advantageous
• Working knowledge of Unix and Windows environments, along with intermediate SQL skills
• Familiarity with an object-oriented programming language such as Python or Java and API concepts, including HTTP and REST APIs, is a plus
• Familiarity with middle- and back-office systems, risk management platforms, and market data services is advantageous
• Strong communication, prioritization, and problem-solving skills, with the ability to manage issues, escalations, and competing priorities in a fast-paced trading environment
• Proven experience supporting AI platforms and working with OpenAI, Anthropic, or other model vendors