You will get Backend API Development | Node.js Express MongoDB | Python FastAPI REST API
Project details
Build a robust, scalable backend for your application with professional API development. As a backend specialist, I create secure, high-performance APIs that power modern web and mobile applications.
Your backend project will include:
• RESTful API development with Node.js and Express.js
• Python FastAPI for high-performance requirements
• MongoDB or PostgreSQL database design
• Secure authentication (JWT, OAuth, session-based)
• Authorization and role-based access control
• Data validation and error handling
• Third-party API integrations
• Payment gateway integration (Stripe, PayPal)
• File upload and cloud storage integration
• Email and SMS notifications
• Webhook implementation
• Database optimization and indexing
• API documentation with Swagger/Postman
• Rate limiting and security measures
Every backend package includes clean, well-documented code that follows security best practices. I build APIs that handle scale, protect user data, and integrate seamlessly with any frontend.
Don't risk security or performance issues. Click "Continue" to get a professional backend API that powers your application reliably!
Your backend project will include:
• RESTful API development with Node.js and Express.js
• Python FastAPI for high-performance requirements
• MongoDB or PostgreSQL database design
• Secure authentication (JWT, OAuth, session-based)
• Authorization and role-based access control
• Data validation and error handling
• Third-party API integrations
• Payment gateway integration (Stripe, PayPal)
• File upload and cloud storage integration
• Email and SMS notifications
• Webhook implementation
• Database optimization and indexing
• API documentation with Swagger/Postman
• Rate limiting and security measures
Every backend package includes clean, well-documented code that follows security best practices. I build APIs that handle scale, protect user data, and integrate seamlessly with any frontend.
Don't risk security or performance issues. Click "Continue" to get a professional backend API that powers your application reliably!
What's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 3 days | 6 days | 10 days |
Number of Revisions | 2 | 4 | 6 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | |||
Source Code |
Frequently asked questions
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HN
Hassan N.
May 4, 2026
AI SaaS Developer (React, Node.js, OpenAI API) – Build & Improve Web App
Ibrar helped us clean up and improve our AI SaaS app (React + Node + OpenAI). The project already existed but had issues with performance and inconsistent responses. He went through the code, fixed the main problems, and made the flow more stable. Communication was straightforward, and he didn’t overcomplicate things.
HN
Hassan N.
Mar 25, 2026
Need help in working SaaS (web app + AI assistant)
I'd hire him again for my SaaS app product, He's genius AI assistant. Thank you.
UZ
Umm E Z.
Mar 18, 2026
Looking for a developer to build a SaaS app with AI chatbot inside
Great experience overall. Helped me build the initial version of my Full-Stack SaaS app and handled the AI side really well. Communication was easy and he was able to guide technical decisions when I wasn’t sure.
About Muhammad Ibrar
AI SaaS Developer | React Next.js Node.js | OpenAI & Scalable Systems
100%
Job Success
Karachi, Pakistan - 5:23 am local time
Built systems used by 10,000+ users, reducing manual work by 60–90% and turning ideas into production-ready platforms.
Most SaaS products fail because of poor architecture, slow performance, or messy integrations.
I help founders and startups avoid that — by building scalable, production-ready systems from day one.
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗:
• AI-powered SaaS platforms (OpenAI, automation, workflows)
• Full-stack web apps (React, Next.js, Node.js)
• Stripe-based subscription systems & billing logic
• Dashboards, internal tools, and admin panels
• AI chatbots & voice agents (RAG, automation, integrations)
𝗥𝗘𝗦𝗨𝗟𝗧𝗦:
✔ Launched fintech SaaS in 8 weeks — serving 2,000+ users with 99.9% uptime
✔ Built AI support chatbot — reduced tickets by 65% in 30 days
✔ Deployed WhatsApp AI bot — generating 400+ qualified leads/month
𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞:
React • Next.js • Node.js • TypeScript
OpenAI • APIs • Stripe • Supabase • PostgreSQL
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘:
• I focus on business outcomes — not just code
• Clean, scalable architecture built for real users
• Fast execution with clear timelines
• Strong communication — no confusion, no delays
If you're building a SaaS product or AI system, I can help you turn your idea into a scalable, production-ready application.
Send me a message with your idea — I’ll share a clear roadmap and honest feedback.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Ibrar can start the project.
Delivery time starts when Muhammad Ibrar receives requirements from you.
Muhammad Ibrar works on your project following the steps below.
Revisions may occur after the delivery date.
Database Design & Planning
Schema design, API endpoint planning, and architecture documentation
Core API Development
Building REST endpoints with authentication and authorization logic