Node.js Backend Development Guide 2025: Complete Roadmap
Node.js powers backend systems of LinkedIn, Netflix, Walmart, and PayPal. Node.js developers earn ₹8-22 LPA in India with strong demand.
Why Node.js?
- JavaScript Everywhere: Same language frontend & backend
- Fast Performance: Non-blocking I/O
- Rich Ecosystem: 1.3M+ npm packages
- Scalable: Handle thousands of connections
Core Concepts
Express.js: Web framework | REST APIs: HTTP methods, endpoints | Databases: MongoDB, PostgreSQL | Authentication: JWT, OAuth, sessions
Career Opportunities
- Backend Developer: ₹6-15 LPA
- Full Stack Developer: ₹8-20 LPA
- API Developer: ₹10-22 LPA
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