Senior UI Engineer - Design Systems Team Lead

Responsibilities

• Lead and develop a team of UI engineers, providing mentorship and fostering a culture of technical excellence.
• Maintain architectural ownership of a comprehensive React-based component library following modern design system principles.
• Collaborate with designers to translate design tokens and interaction patterns into reusable, production-ready components.
• Create and maintain tooling, documentation, and developer experience improvements to enable efficient system adoption.
• Partner with product managers and platform engineers to define component APIs and align the roadmap with business objectives.
• Implement comprehensive testing strategies, including unit tests, visual regression tests, and accessibility audits.
• Champion web accessibility standards (WCAG 2.1 AA) and inclusive design principles across all components.

Requirements

• Proven experience leading and developing engineering teams and mentoring specialists.
• Extensive proficiency in React and TypeScript.
• Demonstrable experience building component libraries or design systems at scale.
• Deep understanding of modern CSS, including custom properties and CSS-in-JS solutions.
• Experience working with design tokens and transformation tooling (e.g., Style Dictionary).
• Solid understanding of web accessibility standards and ARIA patterns.
• Experience with component documentation tools such as Storybook.

Preferred Qualifications

• Experience with Vue.js or other modern frontend frameworks.
• Knowledge of animation libraries and micro-interaction implementation.
• Experience with monorepo tooling (Nx, Turborepo) and CI/CD pipelines for libraries.
• Understanding of semantic versioning and library release processes.
• Experience with Figma plugin development or design-to-code tooling.

About the Company

Barclays is a leading international financial services group. Join our Digital Experience Platform team to build the foundational component library that powers our next-generation digital experiences, establishing patterns that drive consistency and engineering velocity across the organization.