C# Developer - Equity Derivatives Technology Risk (AVP) Ap in London

Discover your future at Citi.

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.

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.

Key Skills and Experience required:

• Highly skilled engineer with broad technical capability along with specialist knowledge of .Net Framework and .Net 5.
• Good understanding of algorithms, system design/architecture, design patterns, implementation and unit testing.
• Curious and flexible mindset, ownership, perseverance, detail oriented and tenacity.
• Dependable and resourceful software professional who can work in a large development team in a globally distributed, dynamic work environment.
• Proven experience in a developer role with experience on large & complex projects.
• Strong C# knowledge in addition to exposure to both .Net Framework 4.5.2 and .Net 5.
• Understanding of .Net performance analysis and optimization approaches.
• Write comprehensive unit tests utilizing frameworks like NUnit, xUnit, Shouldly, or equivalents.
• Familiarity with web technologies OpenAI/Swagger, REST, Authentication, TLS.
• Demonstrable experience or familiarity with high volume, low latency, highly available financial systems, trading platforms, or financial data processing.
• Broad technical experience with exposure to different languages such as Python, Java, Bash as well as operating systems such as Linux.
• Experience with version control & CI/CD tools such as Git & GitLab/GitHub.
• Understanding of one or more messaging technology such Kafka, RabbitMQ, Solace etc.
• Clear understanding of various design patterns and leveraging the same to solve complex technical problems.
• Conduct performance testing and profiling to ensure application robustness and scalability suited for high-volume financial data processing.
• Troubleshoot, diagnose, and resolve code issues and performance bottlenecks.
• Proven ability in working with the development team members and other partners, with minimal supervision.
• Strong verbal and written communications skills, excellent interpersonal skills.
• Team Player, self-starter and thorough who is willing to take on any assigned job/responsibilities.
• Ability to learn new skills quickly with little supervision and ensuring the detail is of high priority.
• Efficiently and effectively manages work, time, and resources.
• Ability to work under high-pressure situations and effectively prioritize in a highly dynamic work environment.
• Strong analytical and problem solving coupled with program execution skills.
• Ability to understand the big picture and apply analytical skills to address issues.
• Utilize knowledge of applications development procedures and concepts to identify and define necessary system enhancements.
• Ability to operate with a limited level of direct supervision and exercise independence of judgement and autonomy.

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:

• Business casual workplace with a hybrid working model (up to 2 days working at home per week).
• Competitive base salary (annually reviewed).
• 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.

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.

For further information and to submit your application, click the apply icon. 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.