I will build scalable nodejs API with express,nestjs , mongodb or postgresql


Level 2
About this gig
Need a High-Performance, Secure Backend for Your App?
Im an experienced Node.js backend developer specializing in building robust, scalable, and secure APIs using Node.js, NestJS, Express.js, MongoDB, and PostgreSQL. I deliver clean, maintainable, and optimized code tailored to your projects needs, whether its a simple REST API or a complex system.
My Services Include:
- REST & GraphQL API development
- Database design & optimization (MongoDB & PostgreSQL)
- Authentication & Authorization (JWT, OAuth, Role-based access)
- Payment gateway integrations (Stripe, PayPal)
- Server-side logic & cloud deployment
- High performance & scalability
Why Hire Me?
- Fast delivery without compromising quality
- Clean & documented code for easy maintenance
- Secure & scalable backend built for growth
- Professional support throughout your project
Lets create a backend that powers your app efficiently and reliably! Have a custom project or questions? Contact me today and lets bring your backend to life!
Get to know Mahamodul Moon
Full Stack Developer Nextjs , NestJS Devops Expert
Level 2
- FromBangladesh
- Member sinceFeb 2025
- Avg. response time1 hour
- Last delivery1 week
Languages
Bengali, English
My Portfolio
Other Software Development Services I Offer
FAQ
What technologies do you use for backend development?
I specialize in Node.js, NestJS, Express.js, TypeScript, MongoDB, and PostgreSQL to build secure, scalable, and high-performance backend solutions.
Can you integrate third-party APIs?
Yes! I can integrate any RESTful or GraphQL APIs, payment gateways like Stripe/PayPal, authentication services like Google OAuth, and more.
Will my backend be secure?
Absolutely. I follow best security practices including JWT authentication, password hashing, and input validation to protect your data and users.
Do you provide database design and optimization?
Yes, I design relational and non-relational databases, optimize queries, and ensure data consistency and scalability.
Can you handle real-time applications?
Yes, I can implement WebSocket or Socket.IO features for real-time messaging, notifications, and live updates.
Do you provide documentation for the backend?
Yes, I provide clear API documentation and setup instructions so you can easily integrate the backend with your frontend.
What if I need maintenance or updates later?
I offer ongoing support and maintenance services to keep your backend up-to-date, secure, and running smoothly.
Do you offer custom backend solutions?
Yes! Every project is customized to meet your business needs, whether it’s a simple API or a complex enterprise system.
How do you handle my data?
I treat all client data with the highest confidentiality. Your files and personal information are used only for the purpose of completing your order and are never shared with third parties without your explicit permission.
What if there’s a security concern?
I have a strict protocol for handling any security issues, including immediate containment, assessment, and corrective measures to ensure your data remains protected.
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A 
azam_acc

United Kingdom
Absolutely fantastic service!
Up to $50
Price
1 day
Duration
M 
Seller's Response
Helpful?
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
A 
azam_acc

United Kingdom
Absolutely fantastic service!
Up to $50
Price
1 day
Duration
M 
Seller's Response
Helpful?

