I will build or fix fastapi rest API backend

O
osamayousuf710
O
osamayousuf710
Osama Yousuf
build or fix fastapi rest API backend
Full Screen
build or fix fastapi rest API backend

About this gig

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.

  • Platform

    • Custom

  • Website type

    • E-Commerce store
    • Business
    • Landing page
    • Saas
    • Portal

  • Programming language

    • JavaScript
    • Python
    • TypeScript
    • HTML & CSS
    • Bootstrap
    • jQuery
    • React
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Osama Yousuf

Osama Yousuf

Senior SaaS and Fintech Full Stack Engineer

  • FromPakistan
  • Member sinceMay 2025

  • Languages

    Urdu, English
Senior Full-Stack Engineer specializing in SaaS and Fintech platforms working with both Javascript and Python. I help startups and founders turn ideas into scalable web applications with secure authentication, payment integrations, and clean architecture. Currently building fintech systems serving 50,000+ users. Expertise: 🔹Next.js, React.js 🔹Node.js, TypeScript, Python, FastAPI 🔹MySQL, MongoDB 🔹Payment Gateways 🔹JWT, OAuth2 🔹Cloud deployment (Vercel, GCP) Whether you need a full SaaS platform or a quick Python fix — I’m here to help. Let’s build something solid.

My Portfolio

Related tags