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I will develop a rest api and backend with node js and mongodb
M Mubazar
About this gig
Need a reliable, secure, and scalable backend for your web or mobile application? I'll design and develop a production-ready REST API using Node.js, Express.js, or NestJS with clean, maintainable architecture.
Hi, I'm Muhammad Mubazar, a backend-focused full-stack developer experienced in building high-performance APIs and backend systems. I create clean, documented, and testable code that integrates smoothly with any frontend or mobile app.
What I'll build:
- RESTful APIs with Express.js/NestJS + TypeScript
- Secure authentication (JWT, OAuth, Google/GitHub login, sessions)
- Role-based access control (Admin/User/Custom roles)
- Database design & integration (MongoDB, PostgreSQL, Supabase, Firebase)
- CRUD operations with validation and error handling
- File uploads & cloud storage (AWS S3, Cloudinary, Supabase Storage)
- Third-party API integrations (Stripe, Twilio, Google Maps, etc.)
- Swagger/OpenAPI documentation
- Pagination, filtering, search, and sorting
- Security setup (Helmet, CORS, rate limiting)
- Testing, Docker, CI/CD, and deployment support
Tech Stack:
Node.js, Express.js, NestJS, TypeScript, MongoDB, PostgreSQL, Prisma etc.
Let's build a backend that is fast, secure, and ready to scale
Get to know M Mubazar
M Mubazar
Senior Full Stack Developer
- FromPakistan
- Member sinceJun 2026
- Avg. response time1 hour
Languages
Urdu, English
Hi, I'm Muhammad Mubazar, a Full Stack Developer specializing in scalable web applications, SaaS solutions, and AI-powered systems.
I build fast, secure, and production-ready applications using Next.js, NestJS, React, Node.js, MongoDB, Redis, ElasticSearch, and AI integrations.
My services include:
• Full Stack Development
• SaaS Applications
• AI Integration
• REST APIs
• Dashboard Development
• Authentication
• Performance Optimization
I focus on clean architecture, responsive UI, scalable backend systems, and reliable communication to deliver high-quality results.
My Portfolio
FAQ
Should I choose Express.js or NestJS for my project?
Express.js is lightweight and flexible great for simple APIs and MVPs where speed matters. NestJS provides more structure with built-in dependency injection, modules, and decorators ideal for larger, enterprise-grade projects. I’ll recommend the best fit based on your project’s complexity and growth
Can I connect your API to my existing frontend or mobile app?
Absolutely! I build standard RESTful APIs with JSON responses that work with any frontend framework (React, Vue, Angular, Next.js) or mobile framework (React Native, Flutter, Swift, Kotlin). I’ll provide clear API documentation so integration is straightforward.
Will you provide API documentation?
Yes, every API I build comes with auto-generated Swagger/OpenAPI documentation. This gives you an interactive page where you can see all endpoints, request/response formats, and even test the API directly from your browser
Which database do you recommend?
MongoDB is great for flexible, document-based data and rapid development. PostgreSQL is ideal for relational data with complex queries, transactions, and strict data integrity. I’ll recommend the best option after understanding your data structure and scale needs.
Do you write tests for the API?
Yes! The Professional and Enterprise packages include unit and integration tests using Jest and Supertest. Tests cover critical paths: authentication flows, CRUD operations, and edge cases. This ensures your API is reliable and safe to modify in the future.
Can you deploy the backend and set up CI/CD?
Yes. I can deploy to Railway, Render, AWS EC2, DigitalOcean, or any platform you prefer. For the Enterprise package, I also set up CI/CD with GitHub Actions so every push to your main branch automatically runs tests and deploys. Hosting setup is included in Professional and Enterprise packages.
