I will fix bugs and add features to your react, node or javascript app

R
roberto3101
R
roberto3101
José L
fix bugs and add features to your react, node or javascript app
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fix bugs and add features to your react, node or javascript app

About this gig

Got a bug that won't go away, or a feature you need added fast? I'm a full-stack developer who ships production apps every day, and I fix React, Node.js and JavaScript issues quickly and cleanly.

WHAT I CAN HELP WITH

  • Fixing bugs and errors in React, Node or vanilla JS
  • Broken layouts, failing API calls, state issues and crashes
  • Adding new features or components to an existing app
  • Performance and UX improvements
  • Getting your app to build and deploy again

HOW IT WORKS

First you send me the bug or feature plus a repo or live link. Then I reproduce it, fix it and test it. Finally I deliver clean code and a short note on what changed.

I work with React, Node, Go, TypeScript, Python and databases daily on real production systems, so I write code that runs and scales, not throwaway patches. Fast replies, clear updates, and your code stays yours.

Not sure which package fits? Message me first and I'll tell you honestly what it needs. Let's get your app working.

  • Platform

    • Custom

  • Website type

    • Landing page
    • Blog
    • Education
    • Portal
    • Dropshipping

  • Programming language

    • JavaScript
    • TypeScript
    • HTML & CSS
    • React
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know José L

José L

Full Stack Developer for Landing Pages, Web Systems and AI Solutions

  • FromPeru
  • Member sinceNov 2025
  • Avg. response time1 hour

  • Languages

    English, Spanish
I'm Jose, a full-stack developer from Lima, Peru. I build backend systems in Go for a nationwide platform, and run several of my own SaaS products live in production on my own server. I build fast, SEO-ready landing pages and small web systems - real products with databases, auth and deployment, not just templates. Shipped: a multi-tenant veterinary SaaS with e-invoicing, a 24/7 distributed bot platform, an AI-powered clinical documentation tool, and bilingual SEO-first sites. I use AI tools daily, so I move fast without cutting corners. Let's talk about your project.

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