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Decathlon

Frontend Developer

Dec 2023 - Apr 2025Barcelona

Overview

Decathlon is one of the world's largest sports goods retailers, operating in over 60 countries. Their Spanish e-commerce team delivers high-performance digital shopping experiences while contributing to the international UI component library shared across markets.

Key Responsibilities

  • Developed and shipped new features for the Spanish e-commerce product pages and checkout flows
  • Contributed to the international Decathlon UI component library alongside the French team
  • Co-led code quality initiatives and defined the frontend testing strategy
  • Monitored and improved Core Web Vitals performance metrics
  • Reviewed pull requests and mentored junior developers

Experiences at Decathlon

Frontend Developer

Dec 2023 - Apr 2025Barcelona

Developing the Spanish e-commerce and contributing to the international Decathlon UI component library. While all this, I also helped leading the code quality and testing strategy for the frontend team.

Key Achievements
  • Brought the e-commerce new features with a focus on performance and reliability
  • Collaborated with the french team to develop the international UI library
  • Co-leaded the code quality and testing strategy for the e-commerce
VueNext.jsSveltePlaywrightJest

Frontend Development

  • Frameworks: React, Next.js, Svelte, Vue
  • UI Library: Storybook, Design Tokens, CSS Modules
  • Testing: Jest, Playwright, Testing Library
  • Performance: Core Web Vitals, Lighthouse, Web Perf
  • Tooling: Vite, ESLint, Git