Senior Frontend Engineer, Design System

Accountabilities

• Build, scale, and continuously evolve the design system, including its component library, design tokens, documentation, and supporting tooling.
• Develop the system for AI-assisted development, enabling coding tools and AI agents to consume components, tokens, guidelines, and machine-readable interfaces effectively.
• Design robust component APIs that minimize misuse and make correct implementation intuitive for both human and AI developers.
• Write high-quality, performant frontend code using React and TypeScript while establishing strong standards for component quality and consistency.
• Partner with designers, product managers, and engineers to define components and take them from concept through production-ready implementation.
• Build accessible components aligned with WCAG 2.2 AA and incorporate accessibility best practices throughout the development lifecycle.
• Own the developer experience, including Storybook, documentation, guidelines, versioning, component APIs, and smooth migration paths.
• Implement and maintain theming, white-label capabilities, localization, and right-to-left support for a global user base.
• Monitor adoption, contributor feedback, and evolving platform capabilities to identify opportunities for continuous improvement.
• Help establish the technical roadmap and direction of the design system over the next 6–12 months.
• Champion adoption of shared components and best practices across engineering teams.
• Contribute to a culture of strong frontend engineering, thoughtful design, accessibility, and improved developer productivity.

Requirements

• At least 5 years of software engineering experience, including 3 or more years at senior level, with experience building frontend platforms or shared UI systems.
• Demonstrated ownership of a design system or component library used across multiple products or engineering teams.
• Expert knowledge of HTML, CSS, JavaScript, and TypeScript, with strong hands-on React experience and familiarity with modern frontend build tooling.
• Strong understanding of component API design, shared-library versioning, and developer experience.
• Experience with, or strong interest in, making component libraries consumable and usable by AI-powered development tools and agents.
• Solid knowledge of responsive design, browser compatibility, frontend architecture, and web performance.
• Practical experience building and validating accessible interfaces against WCAG 2.2 AA and EN 301 549 standards.
• Ability to independently validate accessibility using keyboard navigation and screen readers.
• Strong attention to visual and technical detail, with the judgment to balance design intent, usability, maintainability, and engineering constraints.
• Excellent communication and collaboration skills, with an ability to work effectively across engineering, product, design, and accessibility teams.
• Strong sense of ownership and a passion for improving both developer productivity and end-user experience.
• Strong design sensibility and the confidence to challenge and improve design decisions are highly valued.
• Experience with production-grade multi-brand theming, localization, internationalization, or RTL support is a plus.
• Ability to work remotely within Europe and meet applicable right-to-work and compliance requirements.

Benefits

• Competitive base salary starting at €120,000 / £120,000 / CHF 120,000, depending on location and currency.
• Stock option plan providing an opportunity to participate in the organization's long-term growth.
• Full-time employment with no contractor arrangement.
• 25 days of annual leave plus local public holidays.
• Remote-first working environment with the option to work from an office where available.
• Opportunity to work on advanced AI products and contribute to the future of AI-assisted software development.
• Collaborative environment with strong emphasis on engineering quality, autonomy, ownership, and continuous learning.
• Opportunity to work alongside experienced engineering, design, product, and AI professionals.
• Visa sponsorship may be available for eligible candidates already located within the UK or EU, subject to applicable requirements.
• International working environment with opportunities to collaborate across European and US-based teams.