I will fix bugs cors errors and optimize your python fastapi backend

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ms7mosbah
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ms7mosbah
Messaoud Mosbah

About this gig

FastAPI Doctor: Expert Bug Fixing & Optimization

Stuck with a broken API? Don't just patch itengineer it.

I am a Software Engineer with a Master's Degree specializing in Python backends. I dont just hide error messages; I fix the root cause so your code stays scalable and clean.

PLEASE INBOX ME before ordering to discuss your specific error!

What I Fix Fast:

  • Validation Errors: Solving 422 Unprocessable Entity & Pydantic issues.
  • CORS Fixes: Resolving connectivity issues with React, Flutter, or Vue.
  • Performance: Fixing "blocking" code with Async/Await optimization.
  • Database: Troubleshooting SQLAlchemy, Tortoise ORM, and migrations.
  • Security: Fixing JWT Auth, OAuth2, and Middleware bottlenecks.

⭐ Why Choose Me?

  • Masters Logic: Professional-grade, PEP8-compliant code.
  • Full-Stack Context: I understand your frontend needs.
  • The "Why" Factor: I explain the fix so you learn.
  • Fast Delivery: Most bugs are resolved in under 24 hours.

Stop scrolling through StackOverflow. Let a professional handle your backend.


I offer UNLIMITED Revisions to ensure your 100% satisfaction.

Get to know Messaoud Mosbah

Messaoud Mosbah

Machine Learning Engineer and FastAPI Backend Developer AI Master's Gr

  • FromAlgeria
  • Member sinceFeb 2023
  • Languages

    English, Arabic, French
’m a Machine Learning Engineer and Python Backend Developer with a Master’s degree in Artificial Intelligence. I specialize in building and deploying ML models, designing clean RESTful APIs using FastAPI, and integrating backend systems with databases like PostgreSQL and SQLite. I’ve also worked on real-world mobile apps using Flutter, connecting them with custom backend APIs for use cases like prediction services and CRUD-based applications. My services include: End-to-end ML model development (scikit-learn, classification/regression) Backend API development with FastAPI Database integra

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