I will fix a reproducible react nextjs or supabase app bug

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G
gviana7
Guilherme V
fix a reproducible react nextjs or supabase app bug
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fix a reproducible react nextjs or supabase app bug

About this gig

I will investigate a reproducible bug in your React, Next.js or Supabase application, make a focused correction and verify the agreed user flow.


Please send the steps to reproduce, the expected result and whether staging is available before ordering. I confirm the scope and test access first.


You receive the code changes, a summary of the cause, the checks actually run and any known limitations. Suitable issues include broken forms, data loading and a clearly defined authentication or deployment error.


The package covers only the bugs agreed in writing. New features, redesigns and unrelated problems are separate work. If the cause is larger than the package, I explain it before proposing additional work. Production deployment requires approval.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • Next.js
    • React.js

  • Backend framework

    • Node.js
    • Supabase

Get to know Guilherme V

Guilherme V

Web development and automation with Python React and NextJS

  • FromPortugal
  • Member sinceSep 2026

  • Languages

    Portuguese, English
I help turn technical and data tasks into practical deliverables: websites, app fixes, Python automation, spreadsheet reports and business documents. As co-founder of Easy Flow HQ, I have delivered websites for property rental, telecom and security businesses. I agree scope and checks before starting, use AI tools with human review, and provide a clear handover. Samples are labelled separately from client work. Have a different brief? Share it and I will assess feasibility before committing. Communication stays in writing here on Fiverr.

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