UI Engineer

Responsibilities

• Develop and maintain React-based components following modern design system principles.
• Collaborate with designers to translate design tokens and specifications into reusable, production-ready components.
• Create and improve developer documentation, code examples, and usage guidelines.
• Implement comprehensive testing strategies, including unit tests, visual regression tests, and accessibility audits.
• Participate in code reviews to maintain high standards of code quality across the component library.
• Ensure all components adhere to web accessibility standards (WCAG 2.1 AA) and inclusive design principles.
• Contribute to build pipelines, release processes, and tooling improvements for a scalable component library.

Requirements

• Extensive proficiency in React and TypeScript.
• Experience building reusable components or contributing to component libraries.
• Solid understanding of modern CSS, including CSS custom properties, CSS-in-JS, or utility-first frameworks like Tailwind CSS.
• Experience working with design tokens and translating design decisions into code.
• Strong knowledge of web accessibility standards (WCAG 2.1 AA) and ARIA attributes.
• Familiarity with component documentation tools such as Storybook.
• Experience with modern frontend build tools and package management (Vite, Rollup, npm/pnpm).

Preferred Qualifications

• Experience with Vue.js or other modern frontend frameworks.
• Knowledge of animation libraries and implementing smooth micro-interactions.
• Experience with visual regression testing tools like Chromatic or Percy.
• Understanding of semantic versioning and library release processes.
• Familiarity with monorepo structures and tooling (Nx, Turborepo, pnpm workspaces).
• Experience with Figma and understanding designer workflows.

About the Company

Barclays is a leading international financial services group. Our Digital Experience Platform team builds the foundational component library and design system that powers our next-generation digital experiences, directly impacting how user interfaces are built and delivered across the entire organization.