Expert Backend Developer (Node.js, API Development, Authorization)

We are looking for an experienced Backend Developer to strengthen the server-side of our platform, ensuring efficient API management, secure authorization flows, and optimized backend performance. Core Requirements: Deep experience with backend frameworks like Laravel (PHP) or Node.js (Express/Nest.js) Strong skills in building RESTful APIs and integrating with frontend systems Proficient in Database Design and Management (MySQL, PostgreSQL, MongoDB) Experience in Authorization and Authentication mechanisms (JWT, OAuth, role-based access control) Good understanding of Server-Side State Management (e.g., Sessions, Redis caching) Ability to work with Data Visualization Backends (prepare and optimize data for charts, analytics, reports) Bonus Skills: GraphQL API development WebSocket experience (for real-time updates) AWS, DigitalOcean, or cloud service management API rate-limiting, throttling, and backend security best practices Responsibilities: Design, develop, and optimize scalable APIs Implement and manage secure authentication/authorization Integrate the backend smoothly with the frontend (React-based) Handle backend support for data visualization (optimizing complex queries, aggregation) Ensure high performance, security, and availability Suggest improvements for architecture, performance, and security Additional Info: Must deliver clean, well-structured, and well-documented code Should be able to debug existing backend code and make improvements without breaking features Previous experience working with React frontend is a big plus Please share examples of live APIs, admin panels, or backend systems you’ve built