Low Latency E-Trading Software Engineer

Low Latency E-Trading Software Engineer Job Req Id: 26961747 Location: London, England, United Kingdom Job Type: Hybrid Posted: May 12, 2026 Job Overview We are looking for a Software Engineer in our Equities Electronic Execution team to build Citi's next-generation low-latency execution platform. The platform includes algorithmic trading, smart order routing, dark pool & internalization engines, low-latency connectivity, and high-throughput market data processing. The senior engineer will collaborate with a cross‑functional team of developers and work closely with product development, quantitative research, infrastructure, production support, and QA teams. Close alignment with global strategy and cross-regional delivery is a key aspect of this role. Responsibilities Core Development: Design, develop and maintain high-performance, low-latency electronic execution systems. Product Collaboration: Partner with traders, quant researchers, and clients to understand their needs and translate them into innovative product features and enhancements, including execution performance improvements, new liquidity sources, and DMA capabilities. Testing: Continuously improve and maintain testing frameworks, development tools, and environments to ensure platform reliability and performance at scale. AI‑Powered SDLC: Leverage Citi's suite of AI‑powered development tools throughout the Software Development Life Cycle (SDLC) to enhance productivity, code quality, and innovation. Agile & CI/CD: Contribute to and champion Agile development practices and Continuous Integration/Continuous Delivery (CI/CD) processes with a focus on shift‑left testing and accelerated release cycles. Platform Support & Enhancement: Build and maintain common solutions for trading platform monitoring, trade reconciliation, application recovery, and other essential support functions. Qualifications Strong technical knowledge and expertise in low-latency Java, C++ or Rust. Prior experience developing electronic trading platforms in a global financial institution or equivalent environment. Strong understanding of automated testing techniques and quality engineering practices. Solid understanding of Agile methodologies and Continuous Integration processes. Familiarity with low-latency system design, including performance optimization, concurrency, and high-throughput architecture. Ability to prioritize multiple tasks, set goals, and meet deadlines in a fast‑paced, globally distributed environment. Excellent communication skills with a demonstrable ability to present and grasp complex concepts in a multicultural, cross‑regional environment. Knowledge of regional exchange microstructure and regulatory regimes. Prior experience managing small teams is a plus. Education Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent professional experience. Benefits By joining Citi, you will receive a competitive base salary and a host of benefits, including: 27 days annual leave (plus bank holidays) Discretionary annual performance‑related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resources Equal Opportunity Statement Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity, review Accessibility at Citi. View Citi's EEO Policy Statement and the Know Your Rights poster. #J-18808-Ljbffr