Senior Frontend Developer (m/f/d)

About the Role

We're looking for a Senior Frontend Developer to take a lead role in building and evolving our Shared Design Library - a core set of reusable React components, design tokens, and UX patterns that power our applications. This is a role for someone who is highly technical, self-driven, and passionate about delivering clean, scalable code, but who also excels at communication and collaboration. You'll work closely with designers, product managers, and other engineers to define standards, implement best practices, and ensure consistency across our products.

What You'll Do

• Lead the implementation of a Shared Design Library with reusable React components, design tokens (colors, typography, spacing), and UX patterns used across applications
• Define the foundations of the library: naming conventions, versioning strategy, theming, accessibility standards (WCAG), and contribution guidelines
• Set up and maintain component documentation (Storybook, MDX) with usage guidelines and live examples
• Establish governance for proposing, reviewing, deprecating, and evolving components in partnership with UI/UX Designers and QA
• Define and implement a testing framework/strategy: component unit tests, visual regression, accessibility checks, and integration tests
• Collaborate with Product Designers to translate guidelines into tokenized, testable components, ensuring consistency across apps
• Integrate the library into CI/CD pipelines with automated builds, tests, visual regression, and versioned releases
• Write clean, maintainable, scalable code in TypeScript and React, building responsive, reliable, and secure web applications
• Own feature development from idea to deployment, aligning closely with product, design, backend, QA, and BA teams
• Review code, challenge assumptions, and help raise the technical bar across the team
• Mentor less experienced engineers and support team growth through technical guidance
• Help shape frontend architecture and long-term decisions (modularity, patterns, performance)