*Strong knowledge of JavaScript, including core concepts and best practices.

*In-depth understanding of Data Structures, Algorithms, and Object-Oriented Programming (OOPs).

*Hands-on experience with Node.js and Express.js, including middleware, request validation, and error handling.

*Experience working with PostgreSQL (primary database) or MongoDB, with strong knowledge of query optimization.

*Proficiency in real-time communication using Sockets and MQTT, ensuring optimized message handling, data consistency, and reconnection strategies.

*Frontend development expertise with React.js (or Angular), including state management (Redux or Context API), component optimization, and lazy loading.

*Experience building and consuming RESTful APIs and WebSockets, with knowledge of API versioning, pagination, and caching.

*Proficiency in Git and version control best practices, including rebasing, handling merge conflicts, and CI/CD workflows.

*Strong debugging and performance tuning skills, including memory management, event loop monitoring, and load testing.

*Experience with authentication and security best practices, including JWT, password hashing.

*Understanding of microservices architecture, including service-to-service communication and API gateway integration.

*Code quality and best practices, including:

*Writing clean, maintainable, and modular code following industry standards.