Java Algo Developer for Real-Time Execution Platform

Millennium Management LLC; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Millennium Management LLC seeks a Java Algo Developer for EQ Trading Technology to build and enhance real-time algorithmic trading systems supporting Portfolio Managers and trading partners. You will deliver high-performance execution platforms, translate market constraints into robust technical solutions, and stay current with cutting-edge technologies.

Join a team focused on scalable, low-latency systems with emphasis on testing strategies, market microstructure, and regulatory considerations

Qualifications

• 7+ years of experience with equities execution systems.
• Experience developing execution algorithms such as VWAP, TWAP, Inline, and Pairs.
• Experience working on matching engines and dark pools.
• Experience implementing automated testing strategies for algorithms, including simulation, backtesting, regression suites, and replay frameworks.
• Deep understanding of market microstructure, pre-trade risk checks, limit frameworks, and regulatory requirements, and how they affect execution algorithm performance.
• Expert-level Java skills, with extensive experience building low-latency, GC-aware, high-throughput distributed systems.
• Strong understanding of distributed, event-driven architectures and messaging technologies such as Kafka, Solace, or similar tools.
• Experience working with or building algo container frameworks; experience using AI tools to improve developer productivity is a plus.

Responsibilities

• Partner closely with technologists, Execution Services, and Equity Finance teams to enhance the firm’s execution offering for Portfolio Managers
• Build and evolve real-time algorithmic trading systems and execution platforms in a fast-paced environment
• Develop high-quality new features and enhance functionality on a mission-critical platform
• Design and upgrade software to meet performance, scalability, and quality expectations
• Translate business requirements and market constraints across developed and emerging markets into effective technical solutions
• Stay current on relevant technologies, tools, technical libraries, computing environments, and academic research
• Support data analysis and provide L3 troubleshooting for issues affecting critical trading infrastructure

Skills

Java

Low-latency

Distributed systems

Algorithmic trading

Market microstructure

Testing strategies

Tools

Kafka

Solace

Algo container frameworks

AI tools

Job description

Millennium Management LLC seeks a Java Algo Developer for EQ Trading Technology to build and enhance real-time algorithmic trading systems supporting Portfolio Managers and trading partners. You will deliver high-performance execution platforms, translate market constraints into robust technical solutions, and stay current with cutting-edge technologies.

Join a team focused on scalable, low-latency systems with emphasis on testing strategies, market microstructure, and regulatory considerations