I will fix typescript bugs and performance issues in react next js apps

This gig is for teams and founders who already have a React or Nextjs app but are dealing with TypeScript errors, runtime bugs or slow pages.

The focus is on cleaning up existing code, fixing issues and improving performance without rewriting the whole project.

We look at your current problems first, for example TypeScript type errors, components that fail on certain routes, broken API calls or pages that feel heavy. I then debug the codebase, fix the issues and apply targeted performance work such as reducing unnecessary renders, improving data fetching or optimizing bundles.

If your app grew quickly and now feels messy, we can also make small structural improvements around typing, component boundaries and hooks so future changes are easier. The goal is a React or Nextjs app that compiles cleanly, runs more reliably and feels faster for your users.

Send me a message with your repository, a short list of issues and any performance concerns you have, and we will pick the package that fits best before you place an order.