Job ID: 102161080624Posted: 2026-10-30Location: Belfast, Northern Ireland, United KingdomCategory: TechnologyCompany: CitiDiscover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job OverviewEngineer 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.Job SummaryWe are seeking an experienced Senior Application Developer to join our development team. The primary focus of the role will be to maintain and enhance established business critical applications, delivering new functionality, resolving technical issues and ensuring their continued stability, reliability and maintainability. Alongside these responsibilities, you will have the opportunity to influence the future direction of the application portfolio. Strong experience in modern frontend development will enable you to contribute to the architectural design and development approach for the replacement applications.This role is ideal for someone looking to develop their software engineering skills in a collaborative environment.Responsibilities:Utilise 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 analysing/interpreting codeConsult with users, clients, and other technology groups on issues, and recommend programming solutions, install, and support customer exposure systemsApply fundamental knowledge of programming languages for design specifications.Analyse applications to identify vulnerabilities and security issues, as well as conduct testing and debuggingServe as advisor or coach to new or lower-level analystsIdentify problems, analyse information, and make evaluative judgements to recommend and implement solutionsResolve issues by identifying and selecting solutions through the applications of acquired technical experience and guided by precedentsHas the ability to operate with a limited level of direct supervision.Can exercise independence of judgement and autonomy.Acts as SME to senior stakeholders and /or other team members.Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency.Role ResponsibilitiesDevelop and maintain application functionality using C# WPF and ASP.net.Contribute extensively to the applications modernisation programmeDevelop and maintain user interfaces using React.js.Write clean, maintainable, and well-documented code.Participate in code reviews and team discussions.Debug and resolve application issues.Collaborate with designers, developers, and stakeholders to deliver features.Create and execute unit and integration tests.Learn and apply software development best practices. 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 youBy 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 bonusPrivate Medical Care & Life InsuranceEmployee Assistance ProgramPension PlanPaid Parental LeaveSpecial discounts for employees, family, and friendsAccess to an array of learning and development resourcesVisit our Global 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------------------------------------------------------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.
Equities Middle Office - User Interface Lead (VP) in London employer: Citigroup
Citi is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. As a Sales Director, you will benefit from extensive training and mentorship opportunities, fostering your professional growth while working alongside industry leaders in FX Sales. With a strong commitment to integrity and inclusivity, Citi provides a supportive culture that empowers employees to excel and drive meaningful results for clients.
