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Fiverr Pro
English
$
USD
I will fix bugs or errors in your next js, react, or node js app
Juan Martin
About this gig
Fast & Reliable Bug Fixing for Modern Web Apps
Having issues with your web application?
Im a full-stack developer with 4+ years of experience and I can quickly identify and fix bugs in Next.js, React, and Node.js applications.
Whether its a runtime error, broken API, or unexpected behavior, Ill help you get things working again cleanly and safely.
What I can fix
- JavaScript / TypeScript errors
- Next.js build or runtime issues
- API bugs and backend errors
- Broken UI or logic issues
- Performance or warning-related problems
- Refactors to prevent future bugs
Tech Stack
- Next.js / React
- Node.js / TypeScript
- REST APIs
- PostgreSQL / MongoDB
Please message me before ordering so I can review the issue and confirm scope.
Get to know Juan Martin
Juan Martin
- FromArgentina
- Member sinceFeb 2025
- Avg. response time1 hour
Languages
English, Spanish
I have worked as a Full-Stack Developer for companies in Peru and Argentina. My experience includes modernizing legacy applications, developing a platform that acts as an intermediary between accounting organizations and their clients to facilitate payments via Stripe, PayPal, and other providers, and building a dashboard application for an advertising company to collect and curate data for their clients.
I specialize in Next and have worked extensively with Node, TypeScript, React, Redux, Express, MongoDB, PostgreSQL, jQuery, Cypress, and AWS.
Other Software Development Services I Offer
FAQ
What counts as a “small bug”?
A single isolated issue that can be fixed quickly. Message me to confirm.
Do you fix issues in existing codebases?
Yes — I regularly work with existing projects and repos.
Should I message you before ordering?
Yes, to avoid scope misunderstandings and ensure fast delivery.
