> Markdown version of [/jobs/ext/3521177-senior-ui-engineer-belfast-uk](https://www.wearedevelopers.com/jobs/ext/3521177-senior-ui-engineer-belfast-uk). 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). --- # Senior UI Engineer (Belfast, UK) - **Company:** Congruity360 - **Location:** Belfast, UK - **Experience:** Expert - **Salary:** £43,487.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Audit Trail, Microsoft Azure, Big Data, Cyber Security, Data Governance, Data Visualization, Design of User Interfaces, Integrated Development Environments, Node.Js, Semantic HTML, Software Engineering, TypeScript, Web Content Accessibility Guidelines, Tailwind, ReactJS, Vue.js, Material UI, Information Technology, Front End Software Development, Restful APIs - **Published:** October 2, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5906335905 ## About the Role * A University degree (or equivalent) in Computer Science, Mathematics, Physics, or related field Experience: * 5+ years relevant software engineering and development experience * Proactive attitude with great communications skills, attention to detail, self-motivated, and the ability to work well with people are essential Essential Criteria: * 5+ years Typescript/JavaScript * 3+ years React * UX experience working with designers / product managers to translate requirements into intuitive interfaces * Accessible, responsive UI development, including practical knowledge of WCAG and semantic HTML * Experience with component libraries (React Aria, Radix or similar) and Tailwind CSS or comparable * Experience with data-rich interfaces, including large tables, charts and visualisations * Frontend performance optimisation, particularly for complex interfaces and large datasets * Consuming and shaping REST APIs; state management for complex, long-lived workspaces Desired Criteria: * Enterprise software development * Advanced charting, data visualisation and virtualisation using tools such as D3, visx, ECharts or TanStack Table * Architecture experience designing new products or systems * Building and maintaining reusable component libraries and design systems * Cybersecurity or analyst-tooling experience, including audit trails and role-based access controls * CI/CD pipelines and AWS or Azure exposure * Node.js development * Vue experience * Agile, cross-functional delivery ## Description A new product offering is emerging from concept phase, which expands our solution set from compliance and data governance into cybersecurity. This role offers the opportunity to work in emerging technologies with a primary focus on a React skillset. The successful candidate will be an integral part of a dynamic team, coding in a fast-paced development environment, generating creative solutions to solve customer needs and challenges. The successful candidate will be actively involved in driving technical decisions within the team, with a desire to produce high quality software to provide a superior client experience. ## Related Videos - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Stop using Node.js like in 2020! 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