I will develop a robust Node.js backend API with proper database design and architecture. This comprehensive service includes RESTful API development, database schema design, authentication and authorization, file upload handling, email services, payment integration, and comprehensive testing. The API will be scalable, secure, and well-documented. I will implement best practices for error handling, logging, and performance optimization. Perfect for businesses looking to build a solid foundation for their web or mobile applications with a professional backend infrastructure.