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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Java Developer VP - Citi - **Company:** Citigroup Inc. - **Location:** Belfast, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Agile Methodology, Artificial Intelligence, Code Generation, Software Quality, Code Review, Continuous Integration, Data Governance, Programming Tools, NoSQL, Performance Tuning, Software Maintenance, Reference Data, Software Engineering, SONAR (Symantec), SQL Databases, Systems Integration, Git, Solid Principles, Storage Technologies, Data Management, Static Data, Restful APIs, Software Version Control - **Published:** August 25, 2026 - **Apply:** https://www.reed.co.uk/jobs/lead-java-developer-vp-citi/57275718 ## About the Role As a Senior Software Engineer, you will collaborate with front office, operations, Product Owner team, and development team members to provide solutions that improve efficiency, decrease operational risk, and enable business expansion. You will have experience in building high-performing, scalable, and enterprise-grade applications while adopting best-in-class engineering practices. You'll work in a collaborative, respectful, trusting, and diverse environment that encourages creative thinking and critical problem-solving to serve our clients globally. Specifically, your work on static reference data systems will underpin various critical functions, from accurate trade processing and risk calculations to regulatory reporting, directly contributing to business growth and operational stability., * Very strong software development experience. * Strong knowledge of Java and RESTful web services. * Experience in developing performant code and a solid understanding of Java threading. * Experience working with git based source code management. * Good understanding of clean coding and SOLID principles. * Proficiency in code quality measurements using tools like Sonar. * Familiarity with and ability to leverage AI-powered development tools and platforms (e.g., code generation, intelligent refactoring, testing assistance) to enhance productivity and code quality. * A team player comfortable working in a team that deals with ambiguity and problem-solving. * Ability and willingness to mentor junior team members. * University degree or equivalent experience preferred. Any Beneficial / Nice to have skills and experience: * Strong understanding of financial reference data, data modeling, data governance, and data quality management concepts. * Experience integrating with and managing static data from various financial market data providers * Familiarity with different persistent storage technologies involving both SQL and NoSQL. * Experience working within an Agile environment. ## Description You will join the Equity Derivatives technology team in Belfast, specializing in developing and supporting the reference data platform and systems that manage crucial foundational data such as securities, currencies, accounts, holidays, compositions, and other instrument master data for the Global Equity Derivatives business. This team is a key partner to the markets business and has been a major contributor to its success by ensuring the accuracy, consistency, and timely availability of critical reference data., * Define the architecture, design, development, code review, pairing, testing, and maintenance of applications. * Design and implement scalable applications and services with a solid focus on quality, continuous integration, deployment, observability, metrics, and monitoring. * Write testable code following clean coding and SOLID design principles, instilling best engineering practices across the wider firm. * Perform code reviews and contribute to the overall quality, maintainability, and testability of software developed. * Adapt to changes in priorities and requirements. * Work closely with clients and stakeholders (e.g., Front Office, Quants, Risk, Operations, Regulatory teams) to define reference data requirements, ensure data quality and governance, and deliver robust solutions that materially impact the business and improve the end-user experience. * Provide leadership to project and team from a region perspective. Collaborate with production support, BAs and other developers to help investigate and communicate on production issues, mentor junior developers helping resolve issues or blockers and provide general leadership to team. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)