Trading Application Support Analyst - Fixed Income & Commodities

Millennium; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

Millennium is seeking a skilled trade support professional to maintain and enhance our multi-asset trading platforms across EMEA. You will engage with Quant/PM teams to test and implement algorithms, investigate trade issues, and streamline processes for efficient operation.

Ideal candidates have hands-on experience with fixed income and derivatives platforms, strong SQL, and familiarity with Python/Java and APIs. A collaborative, proactive approach thrives in our fast-paced environment.

Qualifications

• 3+ years of experience in trade support or business analysis in a financial trading environment.
• Experience supporting fixed income/derivatives trading platforms is a plus.
• Working knowledge of Unix and Windows environments with intermediate SQL.
• Familiarity with Python or Java and APIs (HTTP/REST) is advantageous.

Responsibilities

• Provide Level 1 and Level 2 production support for trading systems in EMEA.
• Support electronic and algorithmic trading platform testing and implementation with Portfolio Manager teams.
• Resolve trade and application issues across platforms and escalate to resolution.
• Identify and automate manual processes to improve efficiency and controls.
• Manage incidents and changes with documentation and knowledge base updates.
• Coordinate communications across management, brokers, development teams, Risk and Operations.
• Onboard vendors and ensure applications are installed, configured, and tested.
• Oversee user onboarding activities including training and access controls.

Skills

Trade support

SQL

Python/Java

APIs

Communications

Trading platforms

AI platforms

Risk platforms

Tools

Bloomberg TT

Tradeweb

BidFX

WebICE

Job description

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.

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