
Replatforming a 40k-SKU catalogue
- Client
- Atlas Supply
- Industry
- Industrial supply
- Platform
- Headless
The existing storefront had grown organically for six years and every new campaign made it slower.
2.1s
faster LCP
+38%
conversion lift
Shopify & ecommerce technology · UK & US
We design, develop and optimise high-performing Shopify stores for ambitious brands across the UK, US and beyond. From custom storefronts and Shopify Plus to integrations, apps and conversion optimisation, we build ecommerce experiences designed to help businesses grow.
Shopify specialists. Ecommerce thinkers. Technology built for growth.
Introduction
Your ecommerce store is more than a place to sell products. It's your brand, your customer experience and one of the most important parts of your growth engine.
At TechEx AI, we combine strategy, design and engineering to create Shopify experiences that look exceptional, perform reliably and are built around your business goals.
Whether you're launching a new store, replatforming from another platform or scaling an established Shopify business, we build with what's next in mind.
Explore Shopify ServicesShopify services
From strategy and design to development, integrations and optimisation, we help ambitious brands get more from Shopify.
From initial architecture to launch, we build responsive, scalable Shopify stores tailored to your brand, products and customers.
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Built for ambitious businesses ready to scale. We create advanced Shopify Plus experiences for high-growth brands, complex catalogues, international markets and demanding commerce requirements.
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Your store shouldn't look like everyone else's. We design and develop bespoke Shopify themes that bring your brand to life while keeping performance, flexibility and conversion at the centre.
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Extend Shopify beyond its standard capabilities. We build custom apps and functionality that solve specific business challenges, automate workflows and create better customer experiences.
Learn moreConnect Shopify with the technology your business already relies on. From ERP and CRM systems to PIM, WMS, payments, analytics and marketing platforms, we create reliable integrations that keep your business connected.
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Moving platforms shouldn't mean starting again. We help businesses migrate to Shopify with a structured approach that considers data, SEO, integrations, customer experience and long-term scalability.
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When standard storefronts aren't enough, headless gives your brand greater control. We combine Shopify's commerce infrastructure with modern frontend technologies to create flexible, highly customised experiences.
Learn moreA beautiful store is only the beginning. We identify opportunities across speed, UX and the customer journey to help your Shopify store perform better and convert more effectively.
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Our work
Explore some of the Shopify experiences we've designed, developed and optimised.

The existing storefront had grown organically for six years and every new campaign made it slower.
-24%
churn reduction
+61%
MRR growth

The existing storefront had grown organically for six years and every new campaign made it slower.
+19%
AOV increase
98
Lighthouse
Ecommerce capabilities
Great ecommerce isn't just about technology. It's about creating an experience that makes it easier for customers to discover, trust and buy from your brand.
01
Intuitive experiences designed around real customer behaviour.
02
Clear technical and commercial direction before development begins.
03
Identify friction and opportunities across the customer journey.
04
Fast, reliable storefronts designed for modern customers.
05
Connect your store with the systems powering your business.
06
Continuous development and optimisation after launch.
Ecommerce, engineered for more.
TechEx AI
Inside the studio
Strategists, developers and designers working in the same room on the same store. You talk to the people doing the work, not to an account manager relaying it.
Why TechEx AI
The best ecommerce experiences sit at the intersection of strategy, creativity and technology. We bring these disciplines together to create Shopify stores that are commercially effective and technically built to scale.
We understand the business before we start building.
We create experiences that make your brand memorable.
We build robust Shopify solutions designed for performance and scale.
We continue improving the experience long after launch.
Our process

We understand your brand, customers, challenges and business goals.
We turn requirements into a clear ecommerce strategy and technical roadmap.
We create the UX/UI and visual direction for your new experience.
Our Shopify developers turn the design into a fast, scalable storefront.
We test everything across devices, browsers, integrations and customer journeys.
After launch, we continue improving performance, functionality and conversion.
Technology
Shopify provides the foundation. Our engineering expertise helps you make more of it.
LiquidIntegrations
Connect the tools that power your growth.
KlaviyoIndustries
Different industries have different customers, buying journeys and technical challenges. We create Shopify experiences tailored to the way your customers shop.
Fashion & Apparel
Don’t see your industry?
We build Shopify experiences for ambitious brands across categories.
Testimonials
“They found more in a two-week audit than our previous agency did in a year, and then actually fixed it.”
Priya Raman
Head of Ecommerce, Atlas Supply
“The subscription app shipped on time and the churn numbers moved within a quarter. Rare on both counts.”
Tom Whitfield
Founder, Fernwood
“Clear communication, no surprises, and a handover that our in-house team could actually pick up.”
Grace Lindqvist
CTO, Harlow & Co
“They found more in a two-week audit than our previous agency did in a year, and then actually fixed it.”
Priya Raman
Head of Ecommerce, Atlas Supply
“The subscription app shipped on time and the churn numbers moved within a quarter. Rare on both counts.”
Tom Whitfield
Founder, Fernwood
“Clear communication, no surprises, and a handover that our in-house team could actually pick up.”
Grace Lindqvist
CTO, Harlow & Co
“Clear communication, no surprises, and a handover that our in-house team could actually pick up.”
Grace Lindqvist
CTO, Harlow & Co
“The subscription app shipped on time and the churn numbers moved within a quarter. Rare on both counts.”
Tom Whitfield
Founder, Fernwood
“They found more in a two-week audit than our previous agency did in a year, and then actually fixed it.”
Priya Raman
Head of Ecommerce, Atlas Supply
“Clear communication, no surprises, and a handover that our in-house team could actually pick up.”
Grace Lindqvist
CTO, Harlow & Co
“The subscription app shipped on time and the churn numbers moved within a quarter. Rare on both counts.”
Tom Whitfield
Founder, Fernwood
“They found more in a two-week audit than our previous agency did in a year, and then actually fixed it.”
Priya Raman
Head of Ecommerce, Atlas Supply
FAQ
Yes. We work with both new Shopify builds and existing stores that need redesign, development, optimisation or new functionality.
Yes. We support businesses that require the advanced capabilities and scalability of Shopify Plus.
Yes. We can manage the migration process while considering products, customers, orders, SEO, integrations and the customer experience.
Yes. We develop custom themes, apps, sections, functions and integrations based on specific business requirements.
Yes. We can connect Shopify with ERP, CRM, PIM, WMS, payment, marketing and other third-party systems.
Yes. We can continue supporting your store after launch through development, maintenance, optimisation and technical support.
Yes. TechEx AI works with international clients, with a focus on the UK and US ecommerce markets.
Insights
Most Shopify LCP problems come down to three things. Here is how to find and fix them in an afternoon.
Read moreHeadless solves real problems, but it is not free. A short guide to deciding honestly.
Read moreRetention starts in onboarding. What we have learned shipping apps to the Marketplace.
Read moreWhether you're launching a new Shopify store, moving from another platform or looking to improve the performance of an existing ecommerce business, we'd love to hear what you're building. Tell us where you are today, where you want to go and what you need to make it happen.