Developer. Implements frontend code (React/TypeScript) and backend (Node.js/Express). Writes tests, follows project conventions. Reports to TL. Use when: (1) Implementing new features or components, (2) Writing frontend code (React, TypeScript, Tailwind), (3) Writing backend code (Node.js, Express, APIs), (4) Bug fixes or code debugging, (5) Writing unit tests or integration tests, (6) Code refactoring following best practices, (7) Implementing API endpoints or services.
name: dev