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