Engineered, not assembled.
Designed to be found.

Flux Agency is a Shopify Plus ecommerce agency for brands doing $5M to $100M+. Since 2012 we've built storefronts, product systems and customer journeys for how people and AI agents discover, compare and buy.

We're the engineering partner: Shopify Plus migrations, headless rebuilds for high-volume stores, agentic commerce readiness and long-term partnerships that keep improving the store after launch. Every engagement starts with a fixed-price build.

Explore our services

14+

Years in ecommerce

210+

Shopify stores built

$1.5B+

In client GMV

2XU

Global Shopify Plus commerce platform rebuild
UX Architecture · Shopify Plus Engineering · Platform Partnership
Portable INTELLI-START jump starter placed on sandy ground near a large off-road tire.

Projecta

Headless Shopify Plus architecture
UX Architecture · Shopify Plus Engineering · Headless Engineering

Capabilities.
Agentic Design, AI Search and Commerce Engineering

Agentic Design

Storefronts, product data and discovery designed for two buyers at once: the person, and the AI agent acting for them.

AI Search

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.

Commerce Engineering

Rebuilds, replatforms and the systems behind high-volume Shopify Plus stores. The engineering partner for brands that have outgrown their current build.

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Chosen by Shopify Plus brands worldwide.

Built for the AI era

The commerce stack is changing faster than most brands realise. AI isn't just analysing stores anymore - it's starting to operate them. Shopify has already shipped MCP servers that let AI agents read your catalogue, query inventory, and take action programmatically.

The brands that will use this well are the ones built on structured data, clean integrations, and API-first architecture.

That's how we build. The gap between stores built this way and stores that weren't is already measurable, and we publish the measurements. Found tracks which brands AI recommends across Australia, the US and the UK, updated weekly.

Get started.
Which one are you?

For ecommerce brands

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 commerce technology

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.

Find out more

Migrate to Shopify Plus

Off Magento, BigCommerce or WooCommerce. Full data, SEO and integration migration to Shopify Plus, with rankings held through cutover.

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Shopify or Die

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.

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Frequently Asked Questions

If you have more questions, we're happy to answer them - just reach out.

How does your pricing work?

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.

Is all your work done in-house?

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.

How long does a typical Shopify Plus project take?

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.

What size businesses do you work with?

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.

Why Shopify Plus over other platforms?

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.

Can you migrate us from another platform?

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.

What is agentic commerce, and does my store need to be ready for it?

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.

Do you work with brands outside Australia?

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.

Do you offer ongoing support after launch?

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.