Shopify Lead Engineer at Formula Recruitment, London, 3 Months, to £400 Outside IR35

Shopify Lead Engineer Up to £400 per day | Outside IR35 Fully Remote | UK

A scaling consumer E-commerce business is seeking a Shopify Lead Engineer to own the Shopify architecture on a complex, multi-brand replatforming programme.

Two established consumer brands are migrating from Magento to Shopify Plus within a hybrid headless architecture. You will be the domain expert: designing the multi-brand, multi-market setup, guiding checkout extensibility decisions. This is hands-on, delivery-critical work with real architectural ownership from day one.

Key Responsibilities as a Shopify Lead Engineer:

• Design and validate the multi-brand, multi-market Shopify Plus architecture
• Define the hybrid headless approach with Contentful, including rendering strategy and caching
• Guide checkout extensibility decisions covering Shopify Functions, split orders and fulfilment logic
• Act as the primary Shopify SME with external agencies and vendors
• Support handover documentation so internal teams can operate the platform independently

Skills & Key Requirements:

• Proven Shopify Lead or Tech Lead experience on Shopify Plus, including at least one sizable replatform
• Deep knowledge of Liquid, Shopify APIs, Shopify Functions, checkout extensibility and Markets
• Experience with headless or hybrid architectures integrating a CMS such as Contentful
• OMS integration experience, ideally including complex split-order and fulfilment routing scenarios
• Strong stakeholder communication skills across technical and non-technical audiences

Contract Details:

• Day Rate: Up to £400 per day
• IR35: Outside IR35
• Contract Length: 2 weeks, with view to 3-month extension
• Location: Once a month onsite London
• Start Date: This week

If you are a Shopify Lead Engineer with strong replatforming credentials and want real architectural ownership on a high-profile programme, apply now or get in touch directly.

Due to the high volume of applications, not all applicants will receive feedback.