I will fix nodejs expressjs mysql backend bugs and API errors fast

S
sufyanirfan506
S
sufyanirfan506
Muhammad Sufyan

About this gig

Is your Node.js app crashing? MySQL queries returning wrong data? API throwing 500 errors?


I'll debug your backend, find exactly what's going wrong, and fix it properly so your application runs smoothly without surprises.


What I fix:

  • Node.js runtime errors and crashes
  • Express.js route, middleware, and controller bugs
  • MySQL query errors, wrong results, and slow queries
  • REST API errors (400, 401, 403, 404, 500)
  • Authentication and session issues
  • Database connection and timeout problems
  • Data not saving or updating correctly
  • CORS errors and request handling issues
  • EJS template rendering problems


Why work with me:

  • I debug the actual root cause, not just restart the server
  • I work with MySQL, Express, Node.js daily on real production projects
  • Clear communication I explain what was wrong and how it was fixed
  • Revisions included until the issue is fully resolved


How it works:

  1. Send me your error message, logs, or describe the problem
  2. Share the relevant code or repository
  3. I'll fix it and deliver with a clear explanation


Not sure if your issue qualifies? Message me first I'll tell you honestly.

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Get to know Muhammad Sufyan

Muhammad Sufyan

Full Stack Developer

  • FromPakistan
  • Member sinceNov 2021
  • Avg. response time1 hour
  • Languages

    Urdu, English, Arabic, French
Hi, I'm Muhammad Sufyan, a Full Stack JavaScript Developer passionate about building modern, scalable, and user-friendly web applications. I work with modern technologies to create reliable web solutions that help businesses and individuals bring their ideas to life. Whether you're looking to build a new application, improve an existing system, or add new features, I am committed to providing high-quality work and professional communication throughout the process. Let's build something great together.

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