Senior Low Latency Java Engineer - Equities Electronic- Execution (eTrading)

Senior Low Latency Java Engineer - Equities Electronic- Execution (eTrading) Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter.

Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. What We do / The Team Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining.

We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernised post‑trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise.

As part of the team, you’ll collaborate closely with high‑calibre engineers and deeply engaged business and product partners - working together to define and deliver the next generation of Equities technology at Citi .

Citi's Equities Technology organization is seeking a Senior Software Engineer to join the Equities Electronic- Execution (Electronic Trading) technology team. The person in this role will be responsible for the design, development, and delivery of Citi's next-generation low-latency execution platform. This platform encompasses critical components including Algorithmic Trading, Smart Order Routing (SOR), Dark Pool & Internalization engines, Low latency Client & Exchange 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, technology infrastructure, production support and QA teams. Close alignment with the global strategy and cross-regional delivery is a key aspect of this role. This is a leadership role requiring prior experience in building high performance Electronic Trading platforms and leading high performance development teams.

• Core Development: Design, development and maintenance of 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. What you will bring
• Extensive experience with strong technical knowledge and expertise in Low Latency Java,
• 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. Bonus points for:
• Coupled with extensive Java expertise, added programing skills and experience in C++ or Rust would be considered advantageous.
• Prior experience developing electronic trading platforms in a global financial institution or equivalent environment. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. What we’ll provide you 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 (plus bank holidays)
• A discretional 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 Visit our

| Culture, Values &

page to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day.

We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. #LI-AP2 ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ 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.

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