I will fix a bug or add a small feature to your chrome extension

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Maximilian M.

About this gig

Need a focused fix or small improvement in an existing Chrome extension? I work with JavaScript, TypeScript and React, and build Hide Sensitive Information and Better GitHub PR View.


Message me on Fiverr before ordering with the issue, expected behaviour and relevant code. We will agree on the result and suitable package first.


Basic: one minor, clearly identified fix, up to 45 minutes including testing.

Standard: one isolated bug fix, up to 90 minutes including testing.

Premium: one small feature or more involved fix, up to two hours including testing.


Examples include a popup UI bug, an options setting or content-script behaviour on one website. Each package includes updated source code, test steps and one revision of the agreed change. The time limits define the scope; the agreed result is the deliverable.


Full builds, new backends, complex integrations and store submission need a separate quote. If the scope does not fit, we agree on a quote before work starts.


Based in Vienna. Five-day delivery allows time for careful work alongside my developer role.

Get to know Maximilian M.

Maximilian M.

React, TypeScript and API integration developer

  • FromItaly
  • Member sinceSep 2026
  • Languages

    German, English, Italian
I am a software developer based in Vienna with over four years of production experience at 426 Digital Agency. I build and maintain React and TypeScript apps, Node.js APIs, Shopify and Shopware integrations, and browser extensions. I can help with a specific bug, a small feature or an API connection. My projects include interactive dashboards, bilingual websites and a React Native app. I focus on clear scope, maintainable code and practical handover notes. Available for small projects alongside my current work.

My Portfolio