I will fix your react python or fastapi bugs fast

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Illia Black
Alcune informazioni sono riportate in lingua inglese.

Informazioni su questo servizio

Need a bug fixed fast? I can investigate, fix, and test issues in React, TypeScript, Python, FastAPI, REST APIs, SQL, and web applications.


I work with both frontend and backend issues, including:

  • React / TypeScript bugs
  • Python / FastAPI backend issues
  • REST API errors and integrations
  • Database and SQL-related bugs
  • Validation and business logic issues
  • Broken application flows


With 4+ years of QA and software engineering experience, I approach bug fixing from both development and testing perspectives. I don't just patch the visible error I investigate the cause and validate the affected functionality after the fix.


You will receive clean source code, a tested solution, and clear communication throughout the project.


This Gig is designed for focused issues that need fast turnaround. For larger bugs or unclear scope, message me with the details before ordering so I can recommend the right package.

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Illia Black

QA Engineer

  • DaUcraina
  • Membro daset 2026
  • Lingue

    Ucraino, Inglese
I’m a Software QA Engineer and developer with 4+ years of experience in web, backend, API, and telecom systems. I specialize in bug fixing, small feature development, API integrations, test automation, and end-to-end validation. My stack includes Python, FastAPI, React, TypeScript, Selenium, REST/SOAP APIs, Postman, SQL, Git, CI/CD, Linux, and Kafka. I can help you fix bugs fast, build focused features, troubleshoot backend/API issues, automate tests, and validate your application thoroughly. I focus on fast turnaround, clear communication, and tested solutions.

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