I will build backend apis for web applications or saas products

J
johnbaptist973
J
johnbaptist973
John
build backend apis for web applications or saas products
Full Screen
build backend apis for web applications or saas products
Full Screen
build backend apis for web applications or saas productsbuild backend apis for web applications or saas products

About this gig

Professional RESTful API Development with FastAPI (Secure, Scalable & Clean Code)


Looking for a backend API for your app, SaaS, or startup idea? I've got you covered.


I build fast, scalable, and secure RESTful APIs using the FastAPI framework, combined with reliable databases like PostgreSQL or SQLite or even authentication.


What I Offer:

  • Custom RESTful API development with FastAPI
  • Clean, well-structured, and maintainable code
  • Full CRUD operations (Create, Read, Update, Delete)
  • Secure JWT Authentication (Login, Signup, Token handling)
  • Database integration (PostgreSQL or SQLite)
  • Third-party API integrations (Stripe payments, Email services, etc.)
  • API documentation (Swagger/OpenAPI auto-generated) for testing

️ Tech Stack:

  • FastAPI (Python)
  • PostgreSQL / SQLite
  • SQLAlchemy ORM
  • JWT (Authentication & Security)
  • Stripe API / Email APIs

Delivery:

You will receive:

  • Complete source code
  • Project files structured professionally
  • Setup instructions for easy deployment

I can deliver via:

  • GitHub repository (recommended)
  • Or any preferred file-sharing method

Why Choose Me?

  • Focus on performance & scalability | Clean production ready code

Please get in touch before ordering to discuss your needs.

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Security
    • Design
    • Databases

  • Programming language

    • Python

  • Frontend framework

    • React.js

  • Backend framework

    • FastAPI

Get to know John

John

API Backend Engineer

5.0(2)
  • FromUnited Kingdom
  • Member sinceOct 2021
  • Last delivery3 years

  • Languages

    English
Hi, I’m John. I am a backend developer specializing in building fast, secure RESTful APIs using FastAPI. Experienced with PostgreSQL and SQLite databases, implementing full CRUD functionality and JWT authentication. Skilled in integrating third-party services like Stripe and email APIs. Also have a solid foundation in HTML and CSS, allowing for smooth backend–frontend collaboration. Happy to work together to deliver reliable results.

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