Service

Backend & API Development

The backend is the engine that powers your product. Whether you're building a new platform from scratch, need an API for your mobile app, or want to connect your systems with third-party services — I design and build scalable, secure backend infrastructure that can grow with your business.

What's Included

  • REST API design and development
  • Node.js / Express backend systems
  • JWT and session-based authentication
  • Role-based access control (RBAC)
  • MongoDB and PostgreSQL database design
  • Third-party API integrations
  • Payment gateway integration
  • Real-time features with WebSockets
  • Email and SMS notification systems
  • File storage (AWS S3, Vercel Blob)
  • Rate limiting and API security
  • API documentation (Swagger / OpenAPI)

Technologies Used

Node.jsExpressTypeScriptMongoDBPostgreSQLMySQLRedisWebSocketsJWTREST APIsFirebaseAWS

Frequently Asked Questions

What backend technologies do you use?

Primarily Node.js with Express — fast, scalable, and widely supported. For databases, MongoDB for flexible document data and PostgreSQL/MySQL for relational data. The choice depends on your use case.

Can you integrate with existing systems?

Yes. I integrate with third-party services including payment gateways (Stripe, Moyasar), SMS providers (Twilio, Unifonic), email services (Resend, SendGrid), ERP systems, and custom APIs.

Do you provide API documentation?

Yes. Every API I build includes Swagger/OpenAPI documentation so your team or future developers can understand and extend the system.

Start Your Backend Project

Tell me about your API or backend requirements.

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    Backend & API Development Services | Fetian | Fetian