Job title Senior Shopify Plus Developer Needed for Complex WooCommerce to Shopify Plus B2B Migration with Core Web Vital Assessment Pass Job description We are an established A ecommerce business looking for a highly capable Shopify Plus developer or technical partner for a complex rebuild of our current WooCommerce website. This is not a standard theme setup project. We need someone who can take ownership of a technically demanding migration and help us rebuild the site on Shopify Plus while maintaining the current front-end look and replicating a wide range of existing business-critical functionality. The project includes: WooCommerce to Shopify Plus migration full functionality parity with the current site front-end visual parity with the current site Core Web Vital Assessment pass across the website on desktop and mobile strong real-world speed and responsiveness, not just lab scores custom B2B account and pricing logic MYOB Exo integration custom My Account and invoice-related functionality migration planning, SEO continuity and redirects performance-safe approach to apps vs custom development clear ownership, documentation and handover standards We are not looking for a generic Shopify store setup or an app-heavy approach that creates future speed or maintenance problems. We are looking for someone who: has personally led complex Shopify Plus builds understands migrations from WooCommerce is strong on custom Shopify development, APIs and systems thinking can think through ERP or accounting system integrations understands what is required to achieve and maintain a Core Web Vital Assessment pass communicates clearly and practically is comfortable being assessed in a structured process At this stage, we are not asking for a full proposal yet. To be considered, please reply with: A short note on why this project is a fit for your skill set 2 to 3 relevant examples you personally led involving Shopify Plus, migration, B2B logic, ERP integration or performance-sensitive builds Your initial view of the biggest technical risks in a project like this Your view on what is required to achieve a Core Web Vital Assessment pass on a build like this Whether you prefer to work fixed price, hourly, or through a paid discovery phase first Your current hourly rate and weekly availability Whether you personally do the work or work through a team Please start your reply with: SHOPIFY-B2B-CWV Candidates who look like a fit will then receive our full brief and a structured next-round question set. Generic replies, agency sales replies, and replies that do not address the requested points will not be considered.