> Markdown version of [/jobs/ext/2457532-ui-developer-net-react-avp-citi](https://www.wearedevelopers.com/jobs/ext/2457532-ui-developer-net-react-avp-citi). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # UI Developer .NET/React AVP - Citi - **Company:** Citigroup Inc. - **Location:** Belfast, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), .NET Framework, Microsoft Windows, HTML5, Automation of Tests, C Sharp (Programming Language), Cascading Style Sheets (CSS), IT Management, JSON, Webui, Software Engineering, TypeScript, Web Services, Extensible Markup Language (XML), ReactJS, Front End Software Development, Restful APIs - **Published:** August 25, 2026 - **Apply:** https://www.reed.co.uk/jobs/ui-developer-net-react-avp-citi/57275049 ## About the Role We are looking for a senior UI developer proficient in .NET/C# to join teams transforming Citi UI elements into React based html5 ones, using standard Citi components and ensuring fully automated testing and good design throughout., * Relevant working experience in Windows and Web UI Development * Proficiency in .NET/C# and React * Solid understanding of HTML5, CSS3, JavaScript, knowledge of test frameworks. * Strong sense of responsibility, self-motivation, attention to details and a positive attitude. Preferred skills: * JSON/XML and REST API based web service integrations * Knowledge of TypeScript Education: * Bachelor's degree/University degree or equivalent experience ## Description * Design and deliver front end web applications based on business requirements * Responsible for completing Front-end design and coding in a timely manner by understanding user requirements * Solves complex technology problems / projects for the business unit supported * Tracks business unit performance against the IT business plan and service level agreements; identifies gaps * Appropriately assess risk when business decisions are made, demonstrating 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 behaviours, conduct and business practices, and escalating, managing and reporting control issues with transparency. * Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas * Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users * Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement * Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality * Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems * Ensure essential procedures are followed and help define operating standards and processes * Serve as advisor or coach to new or lower level analysts * Has 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 behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. ## Related Videos - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Developing a clean architecture-inspired React application with MVVM](https://www.wearedevelopers.com/videos/1997-developing-a-clean-architecture-inspired-react-application-with-mvvm) - [Can SVG be fast? 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