I need an experienced Shopify developer to fix a product page issue in my custom Shopify theme.
The problem: when customers select different product variants (sizes or packs), the price does not update dynamically.
I’ve already identified that there’s a JavaScript error — ajaxCart is not defined — which appears in the console. The site is using a custom Timber-based theme with a modified product-extended.liquid and ajax-cart.js.
Tasks required:
Diagnose and fix the variant price update issue
Ensure ajaxCart is properly initialised and compatible with Shopify’s option_selection.js
Verify that selectCallback is working and dynamically updates price, compare-at price, and button states
Test across desktop and mobile to confirm smooth variant selection
Access will be provided via a collaborator request. I’ll provide screenshots and relevant Liquid/JS files.
Looking for someone with proven Shopify theme experience — not just app setup — ideally, who understands AJAX and jQuery interactions in Shopify themes.
Full-Stack CMS Development Category: AngularJS, Bootstrap, Database Design, Full Stack Development, MySQL, Node.js, PHP, Web Development Budget: $25 - $50 USD
16-Jan-2026 23:03 GMT
Transcribe Handwritten Business Notes Category: Data Entry, English (US) Translator, English Spelling, Microsoft Word, Proofreading, Transcription, Typing, Word Budget: $250 - $750 USD
AI Reporting & Schedule Assistant -- 2 Category: AI Development, Automation, Data Analysis, Data Visualization, Microsoft Outlook, Power Automate, Power BI, Python Budget: $750 - $1500 USD
16-Jan-2026 22:54 GMT
Elegant Dove Logo Animation Category: 2D Animation, 3D Animation, Adobe Creative Cloud, Adobe Premiere Pro, After Effects, Animation, Video Production, Video Services Budget: $30 - $250 USD
16-Jan-2026 22:54 GMT
Virtual Wheel of Fortune Webpage Category: API Development, Backend Development, HTML, JavaScript, Node.js, PHP, Prestashop, Web Design, Web Development Budget: $30 - $250 USD
16-Jan-2026 22:53 GMT
General Excel Assistance Needed Category: Data Analysis, Data Management, Data Processing, Excel, Excel Macros, Excel VBA, Visual Basic, Visual Basic For Apps Budget: $10 - $30 AUD
Création de Site Shopify Mono-Produit Category: Conversion Rate Optimization, HTML, Mobile App Development, PHP, Shopify, Shopify Development, Shopify Templates, Web Design Budget: €30 - €250 EUR
16-Jan-2026 22:46 GMT
Custom Excel System for Plastic Business Operations Category: Business Management, Data Analysis, Data Visualization, Excel, Excel Macros, Excel VBA, Inventory Management, Manufacturing, Visual Basic, Visual Basic For Apps Budget: $10 - $30 USD
