{"id":3786035,"url":"https://alion.io/job/citi-c-developer-equity-derivatives-technology-risk-avp","title":"C# Developer - Equity Derivatives Technology Risk (AVP)","company":{"id":7841,"name":"Citi","domain":"citi.com","url":"https://alion.io/company/citi","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":97,"open_postings":578,"ghost_share":0.01,"stale_share":0.265,"repost_share":0.066,"time_to_fill_p50_days":9,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Backend","role_family":"Backend","seniority":"head","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Bash","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"GitLab","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"OpenAI","optional":false},{"name":"Python","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Swagger","optional":false}],"status":"live","first_seen_at":"2026-11-04T00:00:00Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-11T14:24:43Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"C# Developer - Equity Derivatives Technology Risk (AVP)\nEngineer 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.\nWhat We do / The Team\nEquities 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.\nKey Skills and Experience required\nWe 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.\nThe 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.\nProven experience in a developer role with experience on large & complex projects.\nTechnical / Functional Proficiency:\nStrong C# knowledge in addition to exposure to both .Net Framework 4.5.2+ and .Net 5+\nUnderstanding of .Net performance analysis and optimization approaches.\nWrite comprehensive unit tests utilizing frameworks like NUnit, xUnit, Shouldly, or equivalents.\nFamiliarity with web technologies OpenAI/Swagger, REST, Authentication, TLS\nDemonstrable experience or familiarity with high volume, low latency, highly available financial systems, trading platforms, or financial data processing.\nBroad 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.\nExperience with version control & CI/CD tools such as Git & GitLab/GitHub\nUnderstanding of one or more messaging technology such Kafka, RabbitMQ, Solace etc.\nClear understanding various design patterns and leveraging the same to solve complex technical problems.\nConduct performance testing and profiling to ensure application robustness and scalability suited for high-volume financial data processing.\nTroubleshoot, diagnose, and resolve code issues and performance bottlenecks.\nAdded core skills:\nProven ability in working with the development team members and other partners, with minimal supervision.\nStrong verbal and written communications skills, excellent interpersonal skills with ability to communicate well at all levels.\nTeam Player, self-starter and thorough who is willing to take on any assigned job/responsibilities\nAbility to learn new skills quickly with little supervision and ensuring the detail is of high priority\nEfficiently and effectively manages work, time, and resources.\nAbility to work under high-pressure situations and effectively prioritize in a highly dynamic work environment that includes a global focus.\nStrong analytical and problem solving coupled with program execution skills.\nAbility to understand the big picture - can step back and understand the context of problems before applying analytical skills to address the issues.\nUtilize 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\nHas the ability to operate with a limited level of direct supervision.\nCan exercise independence of judgement and autonomy.\nThis job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.\nWhat we’ll provide you\nBy 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:\n27 days annual leave (plus bank holidays) \nA discretional annual performance related bonus \nPrivate Medical Care & Life Insurance \nEmployee Assistance Program \nPension Plan \nPaid Parental Leave \nSpecial discounts for employees, family, and friends \nAccess to an array of learning and development resources \nVisit our About Us | Culture, Values & Benefits page to learn more.\nAlongside 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.\n#LI-AP2\n------------------------------------------------------\nJob Family Group:\nTechnology------------------------------------------------------\nJob Family:\nApplications Development------------------------------------------------------\nTime Type:\nFull time------------------------------------------------------\nMost Relevant Skills\nPlease see the requirements listed above.------------------------------------------------------\nOther Relevant Skills\nFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------\nCiti 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.\nIf 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.\nView Citi’s EEO Policy Statement and the Know Your Rights poster.","description_format":"text","description_chars":6978,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Annual leave","Continuous learning","Equity","Hybrid work","Life insurance","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Wealth Management & Financial Advisors","Payment Processing & Gateways","Investment Banking & M&A Advisory"],"lifecycle":[{"event":"open","at":"2026-11-05T03:33:23Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Graduate Trainee, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; 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