I will build custom node js backend apis for web or mobile apps as developer


About this gig
Need a professional Node.js backend developer to power your web or mobile app? I will build a secure, fast, and scalable backend that matches your exact project needs.
I specialize in designing custom RESTful & GraphQL APIs, implementing strong authentication & authorization, and connecting your app with powerful databases.
From simple APIs to complex business logic, I ensure everything is clean, modular, and production-ready.
Services I provide:
- API development with Node.js & Express.js
- Secure login/signup, JWT, OAuth, role-based access
- Database design, optimization & queries (MongoDB, PostgreSQL, MySQL)
- Third-party API / payment gateway integration (Stripe, PayPal, Firebase, etc.)
- Real-time features using Socket.IO
- Error handling, input validation & performance optimization
- Deployment setup on AWS, DigitalOcean, or Docker
- API documentation (Swagger / Postman)
Why work with me?
- Clean, well-documented, and maintainable code
- Scalable solutions for startups & businesses
- Excellent communication and on-time delivery
- Support after delivery
Feel free to contact me with your requirements to discuss the best solution.
Get to know Sifat Hossain
Full Stack Web Developer, Software Engineer, Backend Developer
- FromBangladesh
- Member sinceMay 2020
- Last delivery1 year
Languages
Bengali, English, Spanish, German
FAQ
Can you build both REST and GraphQL APIs?
Yes! I can build either RESTful APIs or GraphQL endpoints depending on your project requirements.
Will you also handle database design?
Absolutely. I can design and optimize databases (MongoDB, MySQL, PostgreSQL) with proper schemas, relationships, and indexing for performance.
Can you integrate third-party services?
Yes, I can integrate payment gateways, email/SMS services, authentication providers, and other third-party APIs.
Will the code be secure and production-ready?
Yes. I follow best practices for security, including JWT/OAuth authentication, data validation, CORS setup, and error handling.
Do you provide API documentation?
Yes, I deliver well-documented APIs using Swagger, Postman collections, or a README guide for easy integration.
Can you deploy the backend to a server or cloud platform?
Yes, I can set up deployment on AWS, DigitalOcean, or provide Docker/Docker-Compose files for smooth deployment.
Do you provide ongoing support after delivery?
Yes, I include a post-delivery support window for bug fixes or minor adjustments. Long-term maintenance can be discussed.
3 reviews for this Gig
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| (1) |
Rating Breakdown
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- Quality of delivery
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V visionsbyrimey

United Kingdom
Order Canceled
I would strongly advise others to avoid this seller. He was extremely eager to take my money, but clearly didn’t understand the brief or have the ability to complete it. The project was simple: make the layout responsive using the files I provided. What I received back was full of errors — over 10 obvious...
Up to $50
Price
2 days
Duration
S 
Seller's Response
Helpful?H happyuser1013
Repeat Client

United States
I enjoyed working with the seller very much!
S 
Seller's Response
Helpful?H happyuser1013
Repeat Client

United States
I enjoyed working with the seller very much!
S 
Seller's Response
Helpful?
3 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
V visionsbyrimey

United Kingdom
Order Canceled
I would strongly advise others to avoid this seller. He was extremely eager to take my money, but clearly didn’t understand the brief or have the ability to complete it. The project was simple: make the layout responsive using the files I provided. What I received back was full of errors — over 10 obvious...
Up to $50
Price
2 days
Duration
S 
Seller's Response
Helpful?H happyuser1013
Repeat Client

United States
I enjoyed working with the seller very much!
S 
Seller's Response
Helpful?H happyuser1013
Repeat Client

United States
I enjoyed working with the seller very much!
S 
Seller's Response
Helpful?
