Description: Apply quickly via email: Requirements and qualifications: * Bachelor's degree in Computer Science, Software Engineering, or related fields * Minimum 3 years of front-end development experience * Proficiency in HTML5, CSS3, and JavaScript (ES6+) * Solid knowledge of React and TypeScript * Proven experience with componentization and CSS-in-JS styling * Understanding of accessibility (WCAG) and UX best practices * Experience using Git version control and agile workflows Desirable: * Experience with Next.js or Gatsby * Knowledge of Tailwind CSS or styled-components * Familiarity with Storybook and design systems * Skills in performance optimization (lazy loading, code splitting) * Knowledge of CI/CD and automated testing (Jest, React Testing Library) Responsibilities and duties: * 20% improvement in loading speed of main pages * 15% reduction in user-reported bugs in critical components * 10% increase in user satisfaction measured by NPS * Contribution to the creation of an internal design system that reduced development time by 25% * Direct impact on lead conversion through UX optimizations Work schedule: Monday to Friday, business hours with flexibility (PJ contract) Knowledge: Education: Bachelor's degree - Information Technology - No preference Technical skills: JavaScript, Next JS, React, ReactJS, TypeScript, jest, next, unit testing 2512190202551926675