I'm working with a fast-growing, remote-first digital consultancy to hire a Senior UI Engineer. You'll design and build high-quality, performant, and accessible web interfaces across client projects and internal products. Working closely with UX designers, visual designers, and back-end engineers, you'll ensure polished, cohesive user experiences. This is a fantastic opportunity for someone who enjoys mentoring others, shaping front-end architecture, and taking ownership of complex UI challenges. I've placed 10 engineers into this company already, all with excellent feedback on culture, team collaboration, and career development. Key Responsibilities Build responsive, mobile-first interfaces using HTML, CSS, SASS, JavaScript (ES6+) and TypeScript Develop and maintain production-grade React and applications, including SSR and reusable component libraries Ensure consistent design implementation and brand adherence Optimise 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 What We're Looking For Essential: Degree in Computer Science or equivalent experience Strong proficiency in HTML, CSS, JavaScript (ES6+), TypeScript, 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 Desirable: Experience with Webpack, Babel, accessibility standards, design systems, and SEO for front-end Experience working in cross-functional product teams Benefits Competitive salary based on experience Share options under HMRC-approved EMI scheme Pension matched up to 8% Bupa Private Healthcare & Health Assessments Specsavers Corporate Eye Care 25 days annual leave + bank holidays Cycle to Work Scheme Training and professional development budget High-spec equipment and home-office budget Remote-first culture with optional Belfast/London co-working spaces *You must be based in Northern Ireland* Skills: Javascript Typescript React