Full-stack Developer (React / TypeScript Developer / Node.js)

      Must-have

• Strong JavaScript (ES6+) and TypeScript knowledge. Solid practical experience with React: components, hooks, state/props, lifting state.
• Experience with state management libraries (preferably Zustand, Redux Toolkit, or React Query).
• Ability to work with UI component libraries and styling tools (Shadcn, Tailwind CSS).
• Data table libraries experience (Material React Table / TanStack Table or alternatives).
• Experience working with REST APIs: fetching, optimistic updates, error handling.
• Ability to independently implement backend logic (Node.js + Express/Fastify/NestJS or similar) for new endpoints or business logic.
• Understanding of server-side concepts: routing, validation, auth basics, working with databases (SQL/NoSQL) at a basic level.
• Good analytical and mathematical reasoning (many features require non-trivial data transformations).
• HTML5/CSS3 knowledge including responsive layouts (Flexbox/Grid) and cross-browser aspects.
• Familiarity with code quality tools (ESLint, Prettier) + DRY/KISS principles.
• Git/GitHub workflow: branches, PRs, resolving feedback.
• English sufficient for documentation and task discussion.
   

     Nice to have

• Testing experience (Jest + React Testing Library).
• Performance awareness (React rendering, memoization, profiling).
• Familiarity with CI/CD (GitHub Actions).
• Basic understanding of backend architecture (monolith/microservices).
   

     Main responsibilities

• Rewrite parts of an existing React-based application into a standalone application using React + TypeScript.
• Build and maintain React components with clean, modular, and reusable structure.
• Implement data-intensive logic and transformations with attention to mathematical correctness.
• Integrate REST APIs and extend backend functionality when needed (Node.js + DB).
• Maintain consistent code style (ESLint/Prettier) and add tests for core logic.
• Fix bugs, refactor legacy code, and improve maintainability under lead/mentor guidance.
• Ensure performance, responsive UI, and baseline accessibility.
• Participate in technical discussions and collaborate closely with other developers.