I will fix next js react and vercel deployment errors

J
jan_kowalczyk4
J
jan_kowalczyk4
Jan Kowalczyk
fix next js react and vercel deployment errors
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fix next js react and vercel deployment errors
Full Screen
fix next js react and vercel deployment errorsfix next js react and vercel deployment errors

About this gig

Are you stuck with a failed Vercel deployment or a Next.js build error?


I can help diagnose and fix focused issues such as Vercel deployment failures, Next.js build errors, React production bugs, TypeScript errors, missing environment variables, API route problems, routing or hydration issues, package conflicts, and GitHub-to-Vercel setup problems.


Please message me before ordering so I can confirm the issue and recommend the right package. Send the error message or Vercel build log, repository access or files, and a short note about what should happen when the app works correctly.


I keep the fix focused, explain what changed, and provide clear handoff notes.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Source control
    • Testing procedures

  • Frontend framework

    • Next.js
    • React.js

  • Backend framework

    • Next.js
    • Node.js

Get to know Jan Kowalczyk

Jan Kowalczyk

I turn failed deployments into clear fixes

  • FromPoland
  • Member sinceSep 2025
  • Avg. response time1 hour

  • Languages

    English
Hi, I'm Jan. I enjoy the part of development most people would rather skip: figuring out why an app works locally but refuses to deploy. I approach Next.js, React, and Vercel problems like a puzzle - start with the logs, isolate the real cause, fix only what is needed, and explain the solution clearly. I focus on build failures, environment variables, routing, API issues, TypeScript errors, and production-only bugs. You can expect practical communication, focused changes, and clear handoff notes after the fix.

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