Shopify Plus ecommerce agency. 210+ stores since 2012.
We design, build and grow Shopify Plus stores, combining UX design, ecommerce development, AI search optimisation and ongoing support.
$1.5B+ in client revenue·See our work →
Who we are
Flux is a Shopify Plus agency based in Melbourne, working with ecommerce brands across Australia, the United States and the United Kingdom. Since 2012, we’ve built more than 210 Shopify stores.
We help brands that have outgrown their first store or agency through Shopify Plus design and development, platform migrations, headless commerce and systems integrations. Our AI search optimisation and ongoing support help brands improve how customers discover, evaluate and buy from them. Every engagement starts with an agreed scope.
14+
Years in ecommerce
210+
Shopify stores built
$1.5B+
In client GMV
Global
MEL / LA / LON
Shopify work
2XU
What we did UX Architecture, Shopify Plus Engineering & Platform Partnership
Lo & Co

What we did Strategy, UI/UX Design & Headless Engineering on Shopify Plus
Projecta

What we did UX Architecture, Shopify Plus Engineering & Headless Engineering
The Coffee Company

What we did Strategy, UI & UX Design, Headless Engineering, Growth & Support
Products
Three ways in: Lift, Run and Build. Most brands start with one and add the others as the store grows.
AI search optimisation for ecommerce brands. We improve your technical SEO, product information and content to help shoppers discover your brand through Google Search, ChatGPT and Perplexity. Lift is a 100-day partnership with agreed targets. We identify the buying questions that matter to your category and improve the pages and product information that answer them.
Ongoing Shopify support, development and store operations from a senior team. We work with you to prioritise improvements across your store, merchandising and marketing. AI agents handle repeat tasks inside rules your team sets.
Shopify Plus design and development for brands that have outgrown their current store. We deliver store rebuilds, platform migrations, headless storefronts, B2B commerce and integrations with the systems behind your business. Each project starts with discovery to agree the scope, technical requirements and launch plan.















AI search & shopping
Shoppers are asking AI what to buy. Flux helps your products appear in those answers and prepares your Shopify store for agents that help customers purchase.
That starts with the basics: clear product information, accurate prices and stock levels, and systems that work together. We help you get those foundations in place.
Our Found research tracks which brands ChatGPT, Perplexity and Google AI recommend across Australia, the US and the UK. See who appears in the answers, including your competitors.
Every week we ask ChatGPT, Perplexity and Google AI the questions shoppers ask in Australia, the US and the UK, and track which brands they recommend.
We ask ChatGPT and Perplexity 10 real buying questions for your category and score you against your biggest competitor. Live, in about 2 minutes.
Free. Enter your store's website, e.g. yourstore.com
Migrations
Insights
How we work, what we build and how projects start.
Every project starts with a paid discovery phase to define scope, technical requirements and priorities. You get a clear proposal with the scope and timeline before any design or development begins, and there's no hourly billing during the build. After launch, most clients continue with Run for ongoing development, optimisation and AI agents.
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.
It depends on catalogue size, integrations, data migration and design scope, so we agree the launch date at the end of discovery. Discovery locks in scope, technical requirements and priorities before design or development begins, and we plan back from a launch date that suits your trading calendar.
Mostly mid-market brands that have found product-market fit and have outgrown their first store or first agency. Our clients range from high-growth DTC brands upgrading to Shopify Plus through to established retailers running complex multi-region or B2B and 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 though, 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.
Agentic commerce is when an AI agent acts for the buyer. It searches, compares, fills a cart and completes the purchase, often without the buyer opening your store. If you sell on Shopify you are already exposed to it, because Shopify syndicates catalogue data to AI surfaces by default. Readiness means machine-readable pricing and availability, attribute-complete product data, and a checkout that doesn't break for a non-human buyer. The Agentic Commerce Assessment scores all of it.
Yes. We work with brands across Australia, the United States and the United Kingdom, with team in Melbourne, Los Angeles and London, so there's cover across three time zones rather than one office and a Slack channel. Most engagements run remotely regardless of market.
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.