Senior UI Programmer (Remote) in Belfast

At a Glance

• Strong proficiency in React, TypeScript, HTML, CSS, and SASS
• Proven experience building accessible, responsive, mobile-first web interfaces
• Experience with reusable component libraries and design systems
• Comfortable working from Figma or Adobe XD designs through to production-ready UI
• A detail-oriented engineer with a passion for polished, performant user experiences

What You'll Be Doing

• Design and build high-quality, performant, and cohesive user interfaces across a range of client projects and internal products.
• Collaborate closely with back-end engineers, UX designers, and visual designers.
• Determine the structure, layout, and behaviour of modern web interfaces.
• Implement responsive, accessible, mobile-first user interfaces using HTML, CSS, SASS, and modern JavaScript/TypeScript.
• Build robust and maintainable React applications, including SSR and statically-generated pages.
• Develop features that enhance user experience while balancing functional and aesthetic considerations.
• Ensure consistent application of brand and design guidelines across digital products.
• Optimise web pages for speed, scalability, and smooth user interactions.
• Write clean, readable, reusable, and testable front-end code, including front-end test suites using tools such as Jest.
• Debug, diagnose, and resolve functional, visual, and performance issues.
• Work closely with UX and product designers to translate design concepts into production-ready UI using Figma or Adobe XD.
• Build UI layers on top of REST and GraphQL APIs in close collaboration with back-end teams.
• Communicate design and implementation decisions clearly to both technical and non-technical stakeholders.

Your Impact

• Be a key contributor to the quality and consistency of digital experiences delivered to clients across a range of complex, modern projects.
• Your eye for detail and commitment to accessibility and performance will raise the bar for front-end standards across the team.
• As a senior voice, help mentor and elevate the engineers around you, contributing to a culture of craft and continuous improvement.

What We're Looking For

• Essential Degree in Computer Science or a related field, or equivalent industry experience.
• Strong proficiency in core web technologies: HTML, CSS, JavaScript (ES6+), and TypeScript.
• Experience building production-grade React applications, including routing, data fetching (App Router / Pages Router), and SSR pages and components.
• Strong understanding of UI/UX design principles and how user experience influences implementation.
• Strong understanding of responsive, adaptive, and mobile-first design.
• Experience building and maintaining reusable component libraries with an emphasis on scalability, accessibility, and clean semantic code.
• Experience working with design tools such as Figma or Adobe XD.
• Understanding of SEO principles relevant to front-end engineering.
• Strong analytical and problem-solving skills.
• Excellent communication and interpersonal skills.

Desirable

• Experience with bundling and build tools such as Webpack and Babel.
• Familiarity with accessibility (a11y) standards and best practices.
• Experience working within cross-functional product teams.
• Knowledge of performance profiling tools and approaches.
• Experience contributing to design systems or reusable component libraries.

What's In It For You

• Competitive salary based on experience.
• Share options under an HMRC-approved EMI scheme.
• Remote-first working with access to co-working spaces.
• 25 days annual leave plus.