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English
$
USD
I will develop rest api graphql api in nodejs nestjs expressjs with claude codex
Amin Rafaey
5.0
5.0
About this gig
Need a secure backend API that actually supports your app, users, data, and AI features?
I will build a scalable Node.js backend using NestJS, Express, REST API, GraphQL, and AI integration designed to handle business logic, authentication, databases, webhooks, third-party services, and Claude or OpenAI features reliably.
What I Build
- REST API and GraphQL backend systems
- Node.js, NestJS, or Express.js backend architecture
- Claude AI, OpenAI, or custom AI API integration
- Authentication, roles, database, and business logic
- Payment, CRM, webhook, SaaS, and third-party API integrations
Tools and Tech
Node.js · NestJS · Express.js · TypeScript · REST API · GraphQL · MongoDB · PostgreSQL · Prisma · JWT · Claude AI · OpenAI · Stripe · webhooks.
Why me
I can build production-ready backend systems, not quick scripts. Your API is structured, secure, documented, tested, and ready to connect with your frontend, dashboard, AI tool, or mobile app.
Process
1. Review requirements
2. Plan endpoints, schemas, and data flow
3. Build and test backend
4. Deliver docs and setup guide
Includes revisions until the scoped API works correctly.
Message me before ordering
Get to know Amin Rafaey
Amin Rafaey
Senior Software Engineer
- FromPakistan
- Member sinceJul 2019
- Avg. response time6 hours
- Last delivery1 month
Languages
Hindi, English, German, Arabic
I am passionate about helping companies grow and thrive. With a versatile skill set that ranges from providing exceptional technical support to tackling a variety of challenges, I am dedicated to contributing wherever I can to ensure success. Let's work together to take your business to the next level.
My Portfolio
Other Software Development Services I Offer
FAQ
Do you provide backend development services?
Yes, I offer backend development using Node.js, Express, and MongoDB.
Can you build REST APIs?
Yes, I develop fast and secure REST API services for web applications.
Do you handle database integration
Yes, I integrate MongoDB and other databases with backend systems.
Will the backend be secure?
Yes, I implement authentication, validation, and API security best practices.
Do you fix backend bugs?
Yes, I fix bugs and optimize backend performance in Node.js apps
What is included in each package?
Basic includes a small API or backend fix. Standard includes a functional backend module with database, auth, and docs. Premium includes advanced backend systems, integrations, deployment support, and post-launch help.
What is not included?
Frontend UI, mobile app development, hosting fees, paid APIs, AI usage, domain costs, and third-party subscriptions are not included unless added
What access do I need to provide?
You need to provide project requirements, existing code if available, database access, API documentation, environment variables, and deployment access if deployment is required.
Will I need to pay AI or API costs?
Only if your backend uses AI APIs, payment APIs, SMS tools, email tools, or other paid providers. Those costs are billed directly by the provider.
What about hosting and database costs?
Hosting, VPS, cloud database, storage, and platform costs are paid separately by you. I can recommend the right setup based on expected users and data volume.
Reviews
1 reviews for this Gig
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Rating Breakdown
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- Quality of delivery
- Value of delivery
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G 
goneonlu
Repeat Client
Luxembourg
Always great working with Amin
$400-$600
Price
2 days
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
G goneonlu
Repeat Client
Luxembourg
Always great working with Amin
$400-$600
Price
2 days
Duration
Helpful?
