I will quickly fix bugs in your react or c sharp aspnet core app

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Alex
quickly fix bugs in your react or c sharp aspnet core app
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quickly fix bugs in your react or c sharp aspnet core app
Full Screen
Full Screen
quickly fix bugs in your react or c sharp aspnet core appquickly fix bugs in your react or c sharp aspnet core appquickly fix bugs in your react or c sharp aspnet core app

About this gig

Got a bug thatʼs blocking your progress? I'll find and fix it fast

I'm a full-stack developer specializing in React (frontend) and C# ASP.NET Core (backend), working with REST APIs, PostgreSQL databases, authentication systems, and state management.


WHY WORK WITH ME:

  • I built and currently run a production SaaS platform (EdTech, React + C# + PostgreSQL) with real users, anti-cheating systems, and AI integration so I understand how to fix bugs without breaking the rest of your app
  • Clean, working fix not a patch
  • Short explanation of what went wrong and why
  • Fast turnaround (24-72h depending on package)

HOW IT WORKS:

  1. Send me your code or repo access
  2. I diagnose and fix the issue
  3. You get the fix + a short writeup of the cause

NDA available on request. Letʼs get your app running smoothly again!

  • Programming language

    • C#

  • Expertise

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

  • Frontend framework

    • React.js

  • Backend framework

    • Other

Get to know Alex

Alex

FullStack Developer

  • FromUkraine
  • Member sinceDec 2025
  • Avg. response time1 hour

  • Languages

    English, Ukrainian
I'm a full-stack developer specializing in React and C# ASP.NET Core with PostgreSQL. I build real web applications — not templates. My most recent project: ClassConnect (classconnect.com.ua) — a SaaS EdTech platform built from scratch with multi-role auth, anti-cheating exam system, AI assistant, real-time leaderboards, and secure data storage. I take projects where logic actually matters. Message me before ordering.

My Portfolio

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