Full Stack Application Development Technical Lead (Java/Python), Vice President

Single PositionExplore a Career With UsView All JobsFull Stack Application Development Technical Lead (Java/Python), Vice PresidentBELFAST, United KingdomApply NowFind out how well you match with this jobUpload your resumeJob descriptionJob ID26951606Date posted04/05/2026DepartmentTechnologyAre you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, application development, problem solving and communication to the Source to Pay Solutions Technology group.By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growthTeam/Role OverviewSource to Pay Solutions Technology group is part of COO (Citi Operating Office) Technology organization supporting Citi Operating Office business function and its enterprise‑wide transformation agenda to achieve improvements across risk management, controls, data governance, AI adoption, and process re‑engineering by delivering scalable, secure, and modern technology solutions. Based in Belfast, the team partners closely with businesses and technology stakeholders to build, manage, and modernize multiple Source to Pay applications, playing a key role in translating strategic transformation priorities into measurable operational outcomes.What you’ll doApplication Development Technology Lead is a senior level position responsible forDesign, build, and enhance Java based backend services and Python enabled components for enterprise scale applicationsOwn end‑to‑end delivery of features from design through production rollout Collaborate with global technology and business teams to deliver against regulatory and transformation prioritiesApply agile engineering practices (iterative delivery, continuous improvement, pragmatic design decisions)Integrate GenAI capabilities (LLMs, APIs, workflow automation) into real‑world applications where they add value Mentor developers through code reviews, technical guidance, and hands‑on collaborationEnsure applications meet Citi standards for security, stability, and controlWhat we’ll need from youStrong hands‑on experience with Java (Spring Boot / Core); working knowledge of Python or strong willingness to ramp up quickly Full‑stack mindset with exposure to modern frontend frameworks (React, Angular, or similar) Experience delivering in Agile / Scrum environments with a bias toward action and ownership Practical exposure to cloud‑native architecture and scalable systems Awareness or hands‑on experience integrating GenAI / LLM based capabilities into applications, with a focus on integration and usage rather than deep ML researchStrong communication skills and ability to work independently with minimal supervisionWhat we can offer youThis is a role that'll offer you the opportunity to build an in-depth knowledge of financial services and business services operations across the bank. Every day there will be new business challenges that will help you develop new skills that can drive your career. We work hard to have a positive financial and social impact on the communities we serve. In turn, we put our employees first and provide the best-in-class benefits they need to be well, live well and save well.By joining Citi Belfast, 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: Generous holiday allowance starting at 27 days plus bank holidays; increasing with tenureA discretional annual performance related bonus Private medical insurance packages to suit your personal circumstancesEmployee Assistance Program  Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resources Alongside these benefits...