Professional Node.js backend development and database design services. I build robust, scalable server-side applications and APIs.

• Backend Technologies: Node.js, NestJS, Express.js, TypeScript
• API Design: RESTful APIs, GraphQL, WebSocket, microservices
• Databases: PostgreSQL, MongoDB, MySQL, Redis, Supabase, Firebase
• ORM & Query Builders: Prisma, TypeORM, Sequelize, Mongoose
• Authentication: JWT, OAuth2, Passport.js, session management
• Payment Integration: Stripe, PayPal, payment gateway setup
• Cloud & DevOps: AWS, Docker, CI/CD, deployment automation
• Testing: Unit tests, integration tests, API documentation

✓ Custom REST & GraphQL APIs
✓ Database schema design and optimization
✓ Third-party API integrations
✓ Microservices architecture
✓ Real-time features (chat, notifications)
✓ Performance optimization & security

Clean code, thorough documentation, and reliable delivery guaranteed.