At Capitole, we are looking for a Senior Design System Developer to join a multidisciplinary and international team working on cutting-edge eCommerce platforms.
This role is ideal for experienced frontend engineers with a strong focus on UI componentization, design system architecture, and a keen eye for visual consistency and accessibility .
Key Responsibilities
Build and maintain scalable and consistent design systems for B2C/B2B applications
Translate UX/UI designs into reusable, performant, and accessible components
Collaborate with product, design, and engineering teams to ensure seamless user experiences
Work with monorepos, shared libraries, and internal npm package distribution
Ensure strict adherence to WCAG accessibility standards and atomic design principles
Drive best practices in UI development and contribute to internal documentation and tooling
Must Have
Senior-level experience in JavaScript, with deep expertise in React
Strong knowledge of styling libraries like TailwindCSS, Styled Components, or similar
Advanced skills in vanilla CSS, responsive design, and visual polish
Proven track record building or maintaining design systems at scale
Experience collaborating cross-functionally with design and product teams
Fluency in accessibility standards (WCAG) and design tokens
Professional proficiency in English
Why join us?
€1,200 per year in training
Free private health insurance
Flexible compensation on transport, childcare, and meal vouchers
️♂️ Access to 10K+ gyms across Spain via Wellhub (Gymforless)
Events, team buildings, and afterworks every two months
⚽ We sponsor our own football team – join if you’re up for it!
Internal tech communities to learn, share, and grow
The employee will adhere to information security policies:
• Access to confidential information related to (Tu Empresa) and the client project
• Compliance with internal and client security policies and guidelines
• NDA signature required