C# Developer - Equity Derivatives Technology Risk (AVP)
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.
Key Skills and Experience required
We are seeking a highly skilled engineer with broad technical capability along with specialist knowledge of .Net Framework and .Net 5+. You should have good understanding of algorithms, system design/architecture, design patterns, implementation and unit testing. A curious and flexible mindset is a must in this role as to are the following qualities, ownership, perseverance, detail orientated and tenacity.
The ideal candidate will be dependable and resourceful software professional who can comfortably work in a large development team in a globally distributed, dynamic work environment that fosters diversity, teamwork and collaboration.
Proven experience in a developer role with experience on large & complex projects.
Technical / Functional Proficiency:
- 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. Where candidate does not have deep exposure, they must show some basic knowledge and willingness to grow.
- 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 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.
Added core skills:
- Proven ability in working with the development team members and other partners, with minimal supervision.
- Strong verbal and written communications skills, excellent interpersonal skills with ability to communicate well at all levels.
- 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 that includes a global focus.
- Strong analytical and problem solving coupled with program execution skills.
- Ability to understand the big picture – can step back and understand the context of problems before applying analytical skills to address the issues.
- Utilize knowledge of applications development procedures and concepts, and basic knowledge of other technical areas to identify and define necessary system enhancements, including using script tools and analyzing/interpreting code
- Has the ability to operate with a limited level of direct supervision.
- Can 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
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 About Us | Culture, Values & Benefits 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
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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.
Skills Required
- Strong C# knowledge and experience with .Net Framework 4.5.2+ and .Net 5+
- Understanding of .Net performance analysis and optimization
- Experience writing comprehensive unit tests (NUnit, xUnit, Shouldly or equivalents)
- Familiarity with web technologies (OpenAI/Swagger), REST, authentication, TLS
- Experience or familiarity with high-volume, low-latency, highly available financial systems or trading platforms
- Exposure to other languages (Python, Java, Bash) and operating systems such as Linux
- Experience with version control and CI/CD tools such as Git and GitLab/GitHub
- Understanding of messaging technologies (Kafka, RabbitMQ, Solace, etc.)
- Strong knowledge of design patterns, system design/architecture, and algorithms
- Experience conducting performance testing and profiling for scalability and robustness
- Ability to troubleshoot, diagnose, and resolve code issues and performance bottlenecks
- Strong verbal and written communication skills, teamwork, self-starter, and ability to work under pressure
Citi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Citi and has not been reviewed or approved by Citi.
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Healthcare Strength — Benefits coverage is positioned as comprehensive, including health, dental, and vision insurance plus on-site clinics, prescription drug support, and disability coverage. Family-building support such as fertility assistance is described as a notable differentiator within the overall package.
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Retirement Support — Retirement benefits are framed as strong, highlighted by a 401(k) with matching and additional plan options like a Roth 401(k). Financial support is reinforced through discounts and broader financial guidance resources tied to the benefits ecosystem.
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Wellbeing & Lifestyle Benefits — Wellbeing support extends beyond insurance through programs like an Employee Assistance Program, counseling/legal resources, and gym or wellness reimbursement. These offerings increase the perceived total rewards value even when cash compensation sentiment varies by role.
Citi Insights
What We Do
Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We have 200 years of experience helping our clients meet the world's toughest challenges and embrace its greatest opportunities. We are Citi, the global bank – an institution connecting millions of people across hundreds of countries and cities.
