I will fix shopify bugs, liquid errors, and javascript cart issues

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Mahafuzul Haque

About this gig

Please contact me before placing an order to discuss your store's requirements.


Is a broken feature or theme bug impacting your sales? I provide fast, clean, and reliable technical fixes for Shopify merchants. With 5+ years of experience in production theme development, I troubleshoot and resolve Shopify bugs without adding bloat or slow third-party apps.


Common Issues I Fix:

  • Cart & Checkout Glitches: AJAX cart drawers, quantity selectors, and cart total mismatches
  • Interactive UI Bugs: Broken variant selectors, color swatches, dropdowns, and tabs
  • Liquid & Theme Errors: Section rendering bugs, schema conflicts, and console script errors
  • Mobile & Layout Fixes: Unresponsive layouts and CSS display bugs
  • App Conflicts: Resolving third-party scripts fighting over DOM elements


Why Choose Me?

  • Safe Development: Tested on a duplicate/staging theme never on your live store
  • Clean Code: Native Vanilla JavaScript & Liquid-first approach
  • Clear Documentation: Every fix is documented so you know what was updated


Send a message with a description or video link of the issue to get started!

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 Mahafuzul Haque

Mahafuzul Haque

Shopify Developer Specializing in Liquid and Vanilla JS

  • FromBangladesh
  • Member sinceNov 2024
  • Languages

    Bengali, English
Hi! I'm Mahafuzul Haque, a Senior Shopify Developer with 5+ years of hands-on experience building and optimizing production stores. I specialize in Dawn themes, custom Liquid sections, Vanilla JS, AJAX cart systems, and PageSpeed optimizations. My Approach: • Vanilla-First: Native Liquid & JS to keep stores fast without app bloat. • Zero Risk: All edits and features built safely on staging themes. • Clear Docs: Every build comes documented so you know what changed. Message me anytime—let's make your store fast and launch-ready!

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Other Website Maintenance Services I Offer