Shopify Platinum Partner
UX/UI & CRO

Shopify UX/UI Design That Converts

Design that looks the part and earns its keep. SDG pairs brand-led Shopify UX/UI with conversion-rate optimization, designed and built by the same senior team, so the storefront is beautiful, fast, and measurably better at selling.

Since 2006

Shopify’s original enterprise partner, with nearly two decades of experience no rival can match.

Shopify Platinum

Shopify’s highest partner tier, reserved for the few building at the very top of the platform.

Build Award Winner

Winners of the Shopify Build Award for our flagship engineering work on Glossier.

Trusted by Shopify

The team Shopify calls to de-risk and rescue its most critical enterprise builds.

Trusted by brands that define their categories

Apple
SKIMS
Netflix
Nike
Barnes & Noble
Mattel
Shopify
Glossier
lululemon
L’Oréal
LVMH
MoMA Design Store

Design that sells, not just impresses

A storefront is a sales instrument. We design Shopify UX and UI around how people actually shop: clear hierarchy, frictionless paths to purchase, and merchandising that scales with a deep catalog, all in service of the brand rather than at the expense of it.

UX research and conversion-rate optimization

We back design decisions with evidence, from UX review and analytics to structured A/B testing and CRO. Award-winning work like our Glossier build shows what happens when distinctive design and relentless conversion focus are engineered together.

Design and engineering, one team

Because designers and senior engineers sit together, what gets designed is what gets built, pixel-accurate and performant, with accessibility built in. Explore our case studies or our Shopify Plus practice.

Full-service Shopify

Everything your store needs, from one senior team

SDG is a full-service Shopify partner. The same senior engineers and designers behind enterprise replatforms also take on focused projects, ongoing support, and everything in between — for brands large and small. One accountable team, end to end.

Strategy & architecture

Roadmaps, technical architecture, and platform decisions grounded in nearly two decades on Shopify.

UX/UI design

Brand-led storefront design and interface work, engineered to convert as well as it looks.

Storefront development

Theme and fully custom front-end builds, from a single template to a complete storefront.

Headless & composable

Hydrogen, Oxygen, and custom React storefronts engineered to hit performance budgets others miss.

Replatforming & migrations

Moves onto Shopify and Shopify Plus without downtime or data loss, including the largest catalogs in retail.

Systems & data integration

ERP, OMS, PIM, CRM, and bespoke middleware — the back-office systems global retail runs on.

Performance engineering

Core Web Vitals, speed, and reliability treated as a baseline, not an afterthought.

Shopify SEO

Technical SEO, site architecture, and structured data so the right buyers find your store.

CRO & experimentation

Conversion-rate optimization and A/B testing that turn existing traffic into more revenue.

Support & retainers

Ongoing monthly support, maintenance, and enhancement — a senior team on call for your store.

Accessibility

WCAG-compliant builds and audits, so your storefront works for every customer.

Apps & custom functionality

Custom Shopify apps, checkout extensions, and bespoke features the platform doesn’t ship out of the box.

Frequently asked questions

Do you handle both design and development?

Yes. Designers and senior engineers work as one team, so there are no hand-offs and what you approve in design is exactly what ships.

Do you do conversion-rate optimization (CRO)?

Yes. We run CRO and A/B testing grounded in analytics and UX research, turning existing traffic into more revenue.

Can you redesign an existing Shopify store?

Yes. We take on full redesigns and focused UX/UI improvements alike, sized to your goals and budget.

Is accessibility part of your design work?

Always. We design and build to WCAG standards so your storefront works for every customer, which also benefits SEO and conversion.

Do you create design systems for Shopify?

Yes. For larger brands we build reusable design systems and component libraries that keep the storefront consistent as it grows.

Do you take on smaller design projects?

Yes. We are full-service and work with brands large and small, from a single landing page to a complete storefront redesign.

Start a project

Bring us your most complex build.

A replatform that can’t slip. A catalog no one else will touch. An enterprise build that simply has to be flawless. That’s the work we live for.