Strong experience with JavaScript ES6+ and TypeScript
Proficiency in SPA concepts, componentization, immutability, functional programming, and code organization
Knowledge of front-end architecture best practices (separation of concerns, SOLID adapted to the front-end, Clean Code)

Solid experience with JavaScript ES6+ and TypeScript
Proficiency in SPA concepts, componentization, immutability, functional programming, and code organization
Knowledge of front-end architecture best practices (separation of concerns, SOLID adapted to the front-end, Clean Code)
Experience with Vue (2 and 3) and/or React 18+
Hooks, Composition API, componentization and modular architecture
State management with Pinia, Vuex or Context API
React Router or Vue Router
Experience with TanStack Query (React Query/Vue Query) for server-state management
Integration with REST APIs
Use of Axios or Fetch
Authentication via JWT/OAuth2
Global error handling and caching strategies
Integration with multiple backend services (BFF is a plus)
TailwindCSS, Sass or CSS Modules
Experience with libraries such as MUI, Ant Design, Chakra UI or similar
Creation of reusable components and Design Systems
Responsive design (mobile-first)
Basic accessibility knowledge (WCAG/ARIA) and UX best practices
Organization by modules/domains
Lazy loading and code splitting
Performance optimization (memoization, reducing re-renders, bundle optimization)
Experience with DevTools/Lighthouse
Vite, Webpack or similar
Unit testing with Jest or Vitest
E2E testing with Cypress or Playwright
ESLint, Prettier and code quality best practices
Git (GitHub, GitLab or Bitbucket)
Experience with CI/CD
Docker (desirable)
Package publishing and versioning (a plus)

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