Since 2012, Flux has been designing and engineering Shopify Plus commerce experiences across storefronts, product systems, and customer journeys - built for how people and AI agents discover, compare, and buy.
We work as the engineering partner for brands scaling from $5M to $100M+. Shopify Plus migrations, rebuilds for high-volume stores, and long-term platform partnerships that manage and improve the store after launch. Every engagement starts with a fixed-price build.
Get found across Google, ChatGPT and Perplexity. We structure your content, entities and answers so search engines and AI surface your brand when buyers ask.
Rebuilds, replatforms and the systems behind high-volume Shopify Plus stores. The engineering partner for brands that have outgrown their current build.
Storefronts, product data and discovery designed for two buyers at once: the person, and the AI agent acting for them.















For retailers and brands improving discovery, storefronts and Shopify performance. Start with the Agentic Commerce Assessment: it identifies where you can improve across AI discovery, product data and AI-led buying.
Get your assessment→For platforms and apps improving discovery, integration and adoption. Start with the Commerce Technology Assessment: see how retailers discover and evaluate you against competitors, and what stands in the way of adoption.
If you have more questions, we're happy to answer them - just reach out.
Insights into the current and future state of Shopify Plus commerce. Headless architecture, agentic commerce, integration strategy, and the engineering decisions behind stores that scale.
If you have more questions, we're happy to answer them - just reach out.
Every project is scoped as a fixed-price engagement. No hourly billing, no open-ended retainers during the build. We start with a paid Discovery phase to define scope, technical requirements, and priorities - then deliver a clear proposal with a fixed cost and timeline before any design or development begins. Post-launch, most clients move to a monthly retainer for ongoing development, optimisation, and new features.
Yes. Design, engineering, strategy - all done by our core group of senior specialists. The same people work across every project. We don't outsource offshore or rotate through developers you'll never meet. The people on your kickoff call are the same people building your infrastructure.
A standard Shopify Plus build runs 8-12 weeks from kickoff to launch. Headless builds or projects with complex integrations typically land in the 12-18 week range. Every engagement starts with a Discovery phase to lock in scope, technical requirements, and priorities before design or development begins. That upfront work is what keeps timelines tight and prevents scope creep mid-project.
We work with brands doing $5M to $100M+ in annual revenue - businesses that have found product-market fit and are ready to scale their commerce infrastructure. Our clients range from high-growth DTC brands upgrading to Shopify Plus, through to established retailers running complex multi-region or B2B/DTC operations.
We've built on most major ecommerce platforms over the past 14 years. Shopify Plus consistently wins for scaling brands because of its reliability, ecosystem, and total cost of ownership. You're not paying for server infrastructure, security patches, or platform maintenance. With headless architecture through, you get full frontend flexibility without the overhead of managing a custom stack from scratch.
Yes. We've migrated brands from Magento, WooCommerce, BigCommerce, Salesforce Commerce Cloud, and custom-built platforms onto Shopify Plus. Migration is more than moving data - it's rethinking your information architecture, URL structure, integrations, and customer experience for a platform built to scale. We handle the full process: data migration, SEO preservation, custom integration mapping, and a phased launch plan.
Yes. We treat post-launch as a roadmap, not a to-do list - prioritising features, optimisations, and integrations based on what's actually driving revenue. You're not locked into a long-term contract, but the brands that get the most out of their Shopify Plus investment are the ones that keep building after go-live.