I will build or fix nodejs rest API backend for saas


Level 1
About this gig
Struggling with slow, broken, or poorly structured APIs in your web or SaaS application?
I build and fix secure, scalable Node.js REST APIs so your application runs smoothly, handles more users, and stays reliable as it grows.
Whether you need bug fixes, new endpoints, or a complete backend system, I deliver clean, production-ready solutions without unnecessary complexity.
What I can help you with:
Build new REST API endpoints
Fix bugs and improve performance
JWT / OAuth authentication
Database integration (MongoDB, PostgreSQL, MySQL)
Role-based access and user management
API documentation (Postman / Swagger)
Third-party API integrations
AI API integrations (OpenAI, optional)
Best for:
SaaS platforms
Startup MVPs
Web and mobile apps
Backend systems that need cleanup or scaling
If you want a backend that is fast, stable, and easy to maintain, feel free to reach out before placing an order.
Get to know Umair Ali
SaaS and AI Web App Developer React Node
Level 1
- FromPakistan
- Member sinceJun 2016
- Last delivery5 months
Languages
Urdu, English
My Portfolio
FAQ
Q1: Do you work with existing APIs?
Yes, I can fix, optimize, or integrate your existing API.
Q2: Can you connect the API to my frontend?
Absolutely. I integrate APIs with React, Next.js, or Rails applications.
Q3: Which databases do you support?
MongoDB, PostgreSQL, Supabase, MySQL — I’ll use the best option for your project.
Q4: Can you document the API?
Yes, all endpoints come with clear documentation for developers.
Q5: Can you fix an existing Node.js backend?
Absolutely, I can fix bugs, improve performance, and add new API endpoints.
Q6: Can you integrate third-party APIs?
Yes, I can integrate payment gateways, AI APIs, or any REST/GraphQL API.
Q7: Do you provide documentation?
Every API comes with Postman/Swagger documentation and clear explanations.
