Salary: £30,000 - 60,000 per year Requirements: Degree in Computer Science or equivalent experience Strong proficiency in HTML, CSS, JavaScript (ES6), TypeScript, and React Experience building reusable component libraries and SSR applications Understanding of responsive, adaptive, and mobile-first design Familiarity with Figma or Adobe XD Strong problem-solving and communication skills Experience with Webpack, Babel, accessibility standards, design systems, and SEO for front-end (desirable) Experience working in cross-functional product teams (desirable) Responsibilities: Build responsive, mobile-first interfaces using HTML, CSS, SASS, JavaScript (ES6), and TypeScript Develop and maintain production-grade React applications, including SSR and reusable component libraries Ensure consistent design implementation and brand adherence Optimize performance, scalability, and accessibility of web pages Write clean, testable code and maintain front-end test suites (Jest) Translate UX designs into production-ready UI using tools such as Figma or Adobe XD Collaborate with back-end teams to integrate APIs (REST/GraphQL) Communicate technical decisions to both technical and non-technical stakeholders Technologies: Babel CSS ES6 Figma GraphQL JavaScript Jest Mobile REST React SASS TypeScript Webpack Web UX UI Design More: We are a fast-growing, remote-first digital consultancy looking to hire a Senior UI Engineer. In this role, you will design and build high-quality, performant, and accessible web interfaces across client projects and internal products. We offer a competitive salary based on experience, share options under an HMRC-approved EMI scheme, a pension matched up to 8%, and Bupa Private Healthcare & Health Assessments. Youll enjoy 25 days of annual leave plus bank holidays, a Cycle to Work Scheme, and a dedicated training and professional development budget. We also provide high-spec equipment and a home-office budget, with an option to co-work in Belfast or London. Please note that you must be based in Northern Ireland. last updated 11 week of 2026