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Backend & APIs

Scalable server-side solutions — REST APIs, databases, authentication, and third-party integrations. The engine behind your web application.

⏱ Delivery: 3–10 days
📁 Tech: Node.js, Python, PHP
💰 From: $300

What is Backend Development?

Backend development is the server-side logic that powers your website or app — handling data storage, user authentication, API requests, and integrations with third-party services. It's the invisible infrastructure that makes everything work.

I build clean, secure, and scalable backends using Node.js (Express), Python (FastAPI/Flask), or PHP (Laravel), with both SQL and NoSQL database options.

What's Included

  • RESTful API design and development
  • Database architecture (PostgreSQL, MySQL, MongoDB)
  • User authentication & authorization (JWT, OAuth)
  • Server-side logic & business rules
  • Third-party API integrations (Stripe, PayPal, Google, etc.)
  • Data validation & sanitization
  • Security best practices (CORS, rate limiting, encryption)
  • API documentation (Swagger / Postman)

Process

01

Requirements & Architecture

We define the data model, API endpoints, and system architecture based on your application needs.

02

Database & API Setup

Database schema is designed and API routes are built with proper validation and error handling.

03

Integration & Testing

APIs are tested with unit and integration tests. Frontend integration is verified end-to-end.

04

Deployment & Documentation

You receive the deployed API, documentation, and a Postman collection for testing.

Tools Used

🟢 Node.js / Express
🐍 Python / FastAPI
🐘 PHP / Laravel
🗄️ PostgreSQL / MongoDB
🔌 REST / GraphQL

Pricing

Pricing is based on the number of endpoints and complexity. All prices are starting points — exact pricing is confirmed after reviewing your project on Upwork.

Basic
$300
3–5 endpoints · Simple API
  • REST API setup
  • Basic CRUD operations
  • Single database
  • API documentation
Order on Upwork ↗
Advanced
$1,200+
15+ endpoints · Full backend
  • Everything in Standard
  • File upload & storage
  • Admin dashboard API
  • Performance optimization
Order on Upwork ↗
Enterprise
Custom
Complex systems
  • All Advanced features
  • Microservices architecture
  • CI/CD pipeline
  • Ongoing maintenance
Get a Quote ↗
💡 Not sure which package fits? Post your project on Upwork with a description and I'll send a custom offer within 24 hours.

Need a Backend for Your Project?

Place your order securely on Upwork. Payments are protected until you approve the delivered work.

From $300
Price confirmed after reviewing your requirements
Order on Upwork
🔒 Secure payment via Upwork
Delivery Time
⏱ Basic: 3 days
⏱ Standard: 7 days
⏱ Advanced: 10 days