I will build or fix a shopify API integration

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Maximilian M.

About this gig

Connect Shopify to the tools your business uses, or fix a specific problem in an existing integration. I work with TypeScript, Node.js and e-commerce data flows between PIM, ERP and shop systems.


Message me before ordering. We will review the API docs, code and expected result, then agree on a fixed scope.


Basic: one identified integration bug, up to 90 minutes.

Standard: one endpoint or webhook workflow in an existing app, up to 3 hours.

Premium: one-way sync of one data type between Shopify and one documented API, up to 6 hours.


These limits include development, testing and handover. You receive source code, setup and test notes, and one revision of the agreed result. Work is tested in a development store or staging environment.


A full public Shopify app, app-store submission, two-way sync, bulk migration, hosting and paid services are outside these packages. Larger work needs a separate quote. You provide authorised access, API documentation and suitable test data.


Based in Vienna. Delivery is 5, 7 or 14 days depending on scope.

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.

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