Algo Trading Software Engineer (AVP) in London

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Citi's Equities Technology organization is seeking a hands‑on Senior Software Engineer to join the Equities Electronic Execution (Electronic Trading) technology team, focusing on the design and delivery of Citi’s next‑gen Algorithmic trading and Smart Order Routing (SOR) platform. The senior engineer will be involved in hands‑on design and implementation of the platform, contributing to architectural decisions and ensuring adherence to performance and latency targets, while maintaining high standards in code quality and SDLC processes.

This role will require close collaboration with the trading desks, product development, and quantitative research on platform design as well as implementation and optimization of trading strategies. Close alignment with the global strategy and cross‑regional delivery is a key aspect of this role. Prior experience in Algorithmic Trading / SOR / Market Making / Quantitative Trading is necessary along with knowledge of market microstructure and regulatory regimes across regional markets.

• Core Development: Design and development of Citi’s next gen algorithmic trading platforms.
• Product Collaboration: Partner with traders, quant researchers, and clients to understand their needs and translate them into product features and enhancements.
• Testing: Continuously improve and maintain automation 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: Implement 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.

• Strong technical knowledge and expertise in Low Latency Java, C++ or Rust.
• Prior experience in developing Algorithmic Trading or SOR platforms or equivalent in a global financial institution.
• Strong understanding of automated testing techniques and quality engineering practices.
• Strong understanding of Agile methodologies and Continuous Integration processes.
• Expertise in 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.

Bachelor's degree / University degree in Computer Science, Engineering, or a related field, or equivalent professional experience.

By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave.