I will fix bugs in your react nextjs or ai generated app


About this gig
Stuck with a bug that's eating your week? Or an AI-generated app that almost works?
Hey, I'm Estanislao, a frontend developer with 5+ years on large React and TypeScript codebases for international clients. I jump into existing projects fast, find the root cause and fix it properly, then tell you what was wrong.
What I can fix or build:
- Errors, crashes and broken pages in React, Next.js and TypeScript
- Layouts breaking on mobile and styling issues
- State bugs with Redux, Zustand or Context
- APIs not loading data correctly
- Slow pages and performance issues
- New features, pages and reusable components
- Cleaning up code made with AI tools (Lovable, Bolt, Cursor, v0)
How I work: send me the repo or a description of the issue. I confirm what's in scope before starting, follow your project's conventions and send a short summary of every change.
Message me with your issue and I'll tell you honestly if I can fix it and how long it takes.
Get to know Estanislao A.
Frontend Developer, React, NextJS and TypeScript
- FromArgentina
- Member sinceOct 2026
Languages
Spanish, English
My Portfolio
FAQ
What do you need from me to start?
Access to the code (GitHub, GitLab or a zip file), a description of the bug or feature, and steps to reproduce the issue if possible. Screenshots or a short video help a lot.
What if the bug is bigger than expected?
I'll tell you before doing any extra work. You'll always know the cause and the cost upfront, with no surprises.
Can you fix an app made with Lovable, Bolt, Cursor or v0?
Yes. AI tools are great for getting started, but the code often breaks when you add features. I clean it up, fix the bugs and leave it in a state that's easier to maintain. Send me the repo and I'll tell you what I see.
What if you can't fix it?
I review the issue before you order, so I only accept work I'm confident I can solve. If it still turns out I can't fix it, we cancel the order and you get a full refund through Fiverr. No fix, no charge.
Do you need access to my repository?
It's the fastest way. You can add me as a collaborator on GitHub, GitLab or Bitbucket and remove me when we're done, or share a zip of the project. I never need production passwords, and I'm happy to sign an NDA.

