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# Software Engineer

- **Company:** Millennium Management LLC
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Algorithmic Trading, Data Analysis, Computing Platforms, Automation of Tests, Distributed Systems, Enterprise Messaging Systems, Backtesting, Event Driven Architecture, Apache Kafka
- **Published:** June 29, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=49de1cf923390ace

## About the Role

Do you have experience in Test automation?, * 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

## Description

* 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


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