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You will get your fastapi rest API backend fixed or build

Muhammad O.Status: Offline
Muhammad O.
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Muhammad, priced and ready to go.
Muhammad O.Status: Offline
Muhammad O.
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Muhammad, priced and ready to go.

Project details

Looking for a FastAPI developer to build or fix your backend API?
I build clean, scalable, and secure backend APIs using Python and FastAPI.

I can help with:
 • Building REST APIs
 • Fixing existing FastAPI projects
 • JWT authentication
 • Role-based access
 • Database integration
 • API optimization
 • Refactoring messy backend code

I focus on clean architecture and long-term scalability not quick hacks.

Perfect for:
 • Startups
 • SaaS platforms
 • Internal tools
 • Mobile app backends

Message before ordering to discuss scope.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$10
Standard
$80
Advanced
$200
Delivery Time 2 days 4 days 7 days
Number of Revisions
123
Bug Investigation
Fix Documentation
Detailed Code Comments

Frequently asked questions

Muhammad O.Status: Offline

About Muhammad

Muhammad O.Status: Offline
Senior Fintech & Full-Stack Engineer | SaaS, Node.js, Next.js, Python
Karachi, Pakistan - 3:06 am local time
I help startups, founders, and businesses build secure, scalable web applications and APIs using modern full-stack and Python technologies.

I’m a Senior Full-Stack Engineer with 4+ years of experience building production-grade systems, including fintech platforms serving 50,000+ users.

I work across both JavaScript and Python ecosystems.

What I specialize in:

• SaaS MVP development
• Fintech & payment systems
• REST API architecture
• FastAPI & Python backend development
• Next.js & React frontend applications
• Secure authentication (JWT, OAuth2)
• Payment gateway integrations
• Performance optimization & debugging

Tech Stack:

Frontend:
Next.js, React.js, Tailwind CSS, TypeScript

Backend:
Node.js, Express, Fastify
Python, FastAPI
MySQL, PostgreSQL, MongoDB

Other:
JWT, OAuth, Redis, Docker, Cloud Deployment

I can help you with:

✅Building full SaaS platforms
✅Developing secure APIs in Node.js or FastAPI
✅Fixing backend or frontend bugs
✅Optimizing slow queries
✅Adding new features to existing apps
✅Integrating third-party APIs

If you need clean architecture, scalable code, and someone who understands both business logic and system design — let’s talk.

Steps for completing your project

After purchasing the project, send requirements so Muhammad can start the project.

Delivery time starts when Muhammad receives requirements from you.

Muhammad works on your project following the steps below.

Revisions may occur after the delivery date.

Requiements

Client provide Requirements and I start working

Review the work, release payment, and leave feedback to Muhammad.