Shopify Plus development in London

London is the hub of European ecommerce. The brands operating here compete on a global stage, and their commerce platforms need to keep up.

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Flux works with UK and European brands on Shopify Plus projects spanning custom builds, headless architecture, platform migrations, and ongoing retainers. We bring 14 years of Shopify-exclusive expertise and a group that's delivered 150+ stores across three continents.

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With headquarters in Melbourne and people in London and Los Angeles, we cover UK and European business hours natively.

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What we do for UK brands

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Custom Shopify Plus builds

Full storefront design and development on Shopify Plus. UX architecture, responsive design systems, custom checkout extensions, and conversion-optimised layouts built around how your customers actually shop.

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Headless commerce architecture

For brands that need complete design control and performance that standard themes can't deliver. We build on Hydrogen, Sanity, and Algolia - sub-second page loads, total frontend flexibility, and content workflows your marketing team can actually use.

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Platform migrations

Moving from Magento, WooCommerce, BigCommerce, Salesforce Commerce Cloud, or custom-built platforms to Shopify Plus. Data migration, SEO preservation, integration mapping, and phased launch planning.

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Integration engineering

Connecting Shopify Plus to ERPs, 3PLs, email platforms, review tools, and custom APIs. Klaviyo, Gorgias, Okendo, Recharge, and bespoke middleware when off-the-shelf connectors don't cut it.

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Ongoing platform partnerships

Post-launch retainers for feature development, conversion testing, integration maintenance, and strategic upgrades. Your store keeps getting better every month.

Are you based in London?

Yes. We have people in London working directly with UK and European clients during GMT/BST hours. Our headquarters is in Melbourne, Australia, with additional presence in Los Angeles - giving us global coverage across three time zones.

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Do you work with brands outside of London?

Yes. We work with brands across the UK and Europe. Most collaboration happens over video calls and shared project tools, regardless of location.

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What size brands do you work with?

We work best with brands doing $5M-$100M+ in annual revenue that have found product-market fit and are ready to invest in their commerce infrastructure. We assess fit during a paid Discovery phase before any build begins.