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$
USD
I will develop custom node js backend apis for web or mobile apps as developer
Tanvir Ahmed
Level 1
5.0
5.0
Gig Summary
About this gig
Looking for a reliable backend developer to build secure, scalable APIs for your web or mobile app? You're in the right place!
Hi, I'm Tanvir, with years of hands-on experience building SaaS and ERP solutions. I specialize in creating high-performance, production-ready backend solutions tailored to your needs.
What I Offer:
- Custom RESTful and GraphQL API design and development
- Secure role-based authentication and authorization
- Database modeling and optimization
- Third-party API and payment gateway integration (Stripe, PayPal)
- Real-time features such as: chat, notifications, etc.
- Optimize performance with caching and error handling
- API documentation (Swagger, Postman)
- Server deployment with CI/CD pipeline
Tech Stack:
- Backend: Node.js, Express.js
- Databases: MongoDB, MySQL, PostgreSQL
- Cloud & DevOps: AWS, DigitalOcean, Docker
- Security: JWT, OAuth
- Others: Socket.io, Firebase, Supabase, Redis
Why Choose Me?
- Real-world experience of building SaaS and ERP solutions.
- Fast delivery
- Clean, scalable, and well-documented code
- Excellent communication and support
Ready to get started? Send me a message and let's talk about your project!
Get to know Tanvir Ahmed
Tanvir Ahmed
Full Stack and AI Developer, Nextjs, NestJS, AI Integration
Level 1
- FromBangladesh
- Member sinceMay 2020
- Avg. response time1 hour
- Last delivery5 days
Languages
Bengali, English, Urdu, Hindi
I'm Tanvir, a full-stack developer based in Bangladesh, and I spend most of my time building SaaS platforms and AI-powered web apps for clients worldwide. My day-to-day toolkit is React, Next.js, Node.js, and NestJS, backed by MongoDB or PostgreSQL depending on what the project needs. On the AI side, I connect projects to OpenAI and Claude to build chatbots, smart search, and RAG-based features, and when a project calls for automating repetitive work, I set that up with n8n, Make, or Zapier. Whatever the project, I try to keep the code clean, the communication honest, and the delivery on time.
My Portfolio
FAQ
What do you need from me to get started?
I need clear requirements, access to your existing codebase (if applicable), and API keys for any third-party services.
What kind of applications can you build APIs for?
I can develop APIs for a wide range of applications including eCommerce platforms, SaaS products, CRMs, and much more.
How secure will my API be?
I implement best security practices, including JWT authentication, input validation, and middleware for additional protection.
Can you integrate third-party APIs?
Yes, I can integrate popular third-party services like Stripe, PayPal, social media logins, and more.
What is your approach to API documentation?
I provide clear API documentation with Postman collections for easy testing and integration.
Reviews
9 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C coghiel
Canada
This project was a difficult one that created lots of issues based on hosting and the type of language that the application was created with Tanvir was responsive and professional the full process, I would strongly recommend using his services
$50-$100
Price
9 days
Duration
T 
Seller's Response
Helpful?C cherifamini
France
Ongoing collaboration⭐⭐⭐⭐⭐ "Excellent work! Tanvir deployed my 4 React applications quickly and professionally. He was patient, responsive and solved all technical issues including CORS and backend configuration. I highly recommend him for React and Node.js deployment projects. Will definitely work with him again!" 😊
$50
Price
4 days
Duration
T Seller's Response
Helpful?C cherifamini
France
Ongoing collaborationtop merci tanvir
$50
Price
3 days
Duration
T Seller's Response
Helpful?C cherifamini
France
Ongoing collaborationtop nivaux
$50
Price
7 days
Duration
T Seller's Response
Helpful?I its_hotaz
Egypt
Ongoing collaborationPerfect as usual highly recommended
$100-$200
Price
11 days
Duration
T Seller's Response
Helpful?
Reviews
9 reviews for this Gig
| (9) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C coghiel
Canada
This project was a difficult one that created lots of issues based on hosting and the type of language that the application was created with Tanvir was responsive and professional the full process, I would strongly recommend using his services
$50-$100
Price
9 days
Duration
T Seller's Response
Helpful?C cherifamini
France
Ongoing collaboration⭐⭐⭐⭐⭐ "Excellent work! Tanvir deployed my 4 React applications quickly and professionally. He was patient, responsive and solved all technical issues including CORS and backend configuration. I highly recommend him for React and Node.js deployment projects. Will definitely work with him again!" 😊
$50
Price
4 days
Duration
T Seller's Response
Helpful?C cherifamini
France
Ongoing collaborationtop merci tanvir
$50
Price
3 days
Duration
T Seller's Response
Helpful?C cherifamini
France
Ongoing collaborationtop nivaux
$50
Price
7 days
Duration
T Seller's Response
Helpful?I its_hotaz
Egypt
Ongoing collaborationPerfect as usual highly recommended
$100-$200
Price
11 days
Duration
T Seller's Response
Helpful?
