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Lucas Cubilla
From Paraguay 02:23 AM (GMT-03:00)
$16/hr or $30,000/yr

Active 3 hours ago


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Front-end Engineer

Front-end Engineer
Available for hire
Years of experience
5+ years
Experience level
Mid-level
Available from
28 Jul 2026
Download Resume / CV

I worked in the development and maintenance of a Digital Document Management & Automation Platform, here are a few highlights of my work there:

  • Diagnosed performance bottlenecks caused by React Context API state propagation
  • Helped with the planning and migration of the global state management to an architecture that uses Zustand, reducing re-render time of critical components from ~3000 ms to under 1000 ms (≈80% improvement), improving application responsiveness and general user experience
  • Suggested GraphQL Codegen and later implemented it for type-safe API communication, ensuring automatic TypeScript synchronization with backend schemas and eliminating type errors from manual typing
  • Migrated the platform from Create React App to Vite, significantly improving development build speeds and HMR (hot module replacement performance)
  • Established comprehensive testing infrastructure with Vitest and React Testing Library, integrating MSW for reliable API mocking and integration testing
  • Migrated ~50+ components through MUI v4 → v5 → v6, implementing modern design patterns with TypeScript for enhanced type safety​

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