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Shopify & Shopify Plus Development

Shopify development services, with senior Plus depth on every build.

Checkout customization, custom apps, and integrations are where stock Shopify builds stall, and where most agencies quietly hand the hard parts to juniors. We are senior Shopify and Shopify Plus engineers who build custom themes, checkout extensibility, apps, and Hydrogen storefronts for brands doing real revenue. Sixteen years in ecommerce, 300+ brands, no junior bench.

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Trusted by 300+ brands
RolexIntelYETIPenn StatePurdue UniversityAsicsSiemensMarucci
Why brands come to us

When your catalog, traffic, or roadmap has outgrown the theme.

Stores stall for the same reasons: a theme nobody wants to touch, an app stack that drags every page, a checkout that leaks revenue, and a backlog that never moves. We are the Shopify development company brands call when the off-the-shelf phase is over and the build has to be done right. As a senior team with Shopify Plus partner depth, we pair real engineering with commerce strategy, so the work ships and the numbers follow. When the goal is the full platform jump, our Shopify Plus agency team carries it end to end.

16+ yrs
Building ecommerce, since 2008
300+
Brands shipped worldwide
$10B+
In client GMV powered
94%
Client retention after launch
Partnerships · Reviews · Awards

Credentials & recognition.

Partnerships
Customer reviews
Industry awards
  • CSSDA Best Innovation
  • CSSDA Special Design Kudos
  • CSSDA Best UI Design
  • CSSDA Best UX Design
  • CSSDA Best UX Design
Client-first approach

We're here to help you win, plain and simple.

Same senior team from kickoff to launch and beyond. We do not outsource, we do not disappear after go-live, and we do not hand you off.

Client TestimonialWatch their story
Client TestimonialWatch their story
94%
Client retention

Across every phase. Discovery, build, launch, and growth, the same senior team stays with you.

See more wins
What our Shopify team builds

Full-stack Shopify development, from custom themes to headless storefronts.

Whatever the store needs, the same senior developers handle it end to end. Every engagement is scoped to your roadmap, not a fixed package.

/01Custom theme developmentConversion-led storefronts built in Liquid and modern JS, not another drag-and-drop template. Fast, on-brand, and tuned to how your customers actually shop./02Shopify app developmentPrivate and public apps that do what the app store cannot. Built on the latest Shopify APIs and admin extensions, so they hold up as the platform evolves./03Hydrogen & headless storefrontsHeadless builds on Hydrogen and Oxygen, or a custom front end on the Storefront API, keeping Shopify as the commerce engine while the experience layer is fully yours./04Checkout extensibilityCustom checkout on Shopify Plus with Checkout UI extensions, Functions, and branding, so upsells, validation, and shipping logic happen where the money is made./05B2B & wholesale buildsCompany accounts, catalogs, quote workflows, and tiered pricing on Shopify B2B, for brands that sell to businesses as well as consumers, all on one store./06ERP & systems integrationTwo-way sync between Shopify and NetSuite, your ERP, PIM, or fulfillment, so inventory, orders, and pricing stay accurate without anyone rekeying data./07Markets & cross-borderShopify Markets set up for multi-currency, localized catalogs, and international domains, so selling in a new region is a configuration, not a second store./08Performance & Core Web VitalsSlow storefronts leak revenue. We trim theme bloat, audit your app stack, and ship clean Core Web Vitals so pages load fast enough to convert./09Embedded teams & retainersA dedicated senior team on call for roadmap work, fixes, and growth experiments, working as an extension of your staff, with the same people who know your codebase.
Build on Shopify or Plus

We build on Shopify and Shopify Plus.

Most development is identical across plans: themes, apps, Hydrogen, and integrations. Plus changes one thing that matters to engineers, the checkout. We build to the same standard on either, and steer you to Plus only when the work genuinely requires it.

Shopify

On standard Shopify we build custom themes, apps, Hydrogen headless storefronts, and integrations. The checkout stays Shopify-managed, which is fine for the large majority of stores.

Best when
  • You want a custom build without Plus
  • Headless or theme work, standard checkout
  • Apps and integrations cover your logic
Shopify Plus

On Plus we add checkout extensibility and Shopify Functions, so we can customize the checkout, shipping, discounts, and B2B flows that standard plans do not expose, with higher API limits.

Best when
  • You need a customized checkout
  • Shopify Functions or scripts are required
  • B2B or high API volume is in scope

Unsure which plan the build needs? Start with Shopify consulting.

Featured work

Proof behind the partnership, not just a pitch.

A few of the stores our senior team has shipped, scaled, and stayed on to grow.

Wholesale · Shopify PlusEuropa Eyewear ecommerce case study, IWD Agency

Europa Eyewear

A Shopify Plus wholesale storefront with SparkLayer B2B and a Mirakl marketplace for a global eyewear house.

3,500+
Products
2
Marketplaces
B2B · MagentoQC Supply ecommerce case study, IWD Agency

QC Supply

An enterprise Magento B2B rebuild with GroupBy search and Microsoft Dynamics ERP for a high-SKU distributor.

100%
Headless PWA
10+
B2B tiers
DTC · MagentoUS Camera Pro ecommerce case study, IWD Agency

US Camera Pro

A Magento store for a camera and optics retailer, with M2E marketplace sync across channels.

View the case study
See more of our work
Why IWD

The same senior developers from kickoff to launch and beyond.

Most Shopify projects go sideways for one of two reasons: the work gets passed to a junior team, or the agency vanishes once the invoice clears. We built IWD to do the opposite.

Book a 15-minute assessment

  • Shopify Plus partner depth

    We work at the platform level: checkout extensibility, Functions, Hydrogen, and the latest admin and Storefront APIs. Your store is built by Shopify developers who know where the real gains hide.

  • Senior team, no junior bench

    You work with the engineers doing the work. We do not hand your build to a training program and disappear once the store goes live.

  • Sixteen years in ecommerce

    We have shipped on Shopify, Shopify Plus, and every major commerce platform since 2008, across high-volume DTC, enterprise B2B, and complex multi-market catalogs.

  • We build, then we stay

    Most clients keep us on after launch for performance, features, and growth. The team that built your store is the team that keeps making it perform.

How we work

A clear path from audit to measurable results.

01

Audit

We review your theme, app stack, and analytics to map what is slowing the store down and what is worth building next.

02

Architect

A phased roadmap with scope, timeline, and a real number. You see the plan and the priorities before any code is written.

03

Build

Two-week sprints, weekly demos, and a shared backlog. The same senior developers ship to Shopify standards every cycle.

04

Optimize

After launch we tune performance, run conversion experiments, and extend the roadmap. We stay to make the numbers move.

Questions, answered

What merchants ask before they hire our Shopify developers.

Do you work on Shopify, Shopify Plus, or both?

Both. We build on standard Shopify and on Shopify Plus, and we help brands move up to Plus when their volume, B2B needs, or checkout requirements call for it. We work on new builds, inherited stores, and existing themes that need real engineering.

Can you take over a Shopify store another agency or freelancer built?

Yes, and it is one of the most common ways clients start with us. We run a theme and app audit first, document what we find in plain language, then give you a prioritized plan before we touch anything.

Can you build a Hydrogen or headless Shopify storefront?

Yes. We build headless storefronts on Hydrogen and Oxygen, and custom front ends on the Storefront API, keeping Shopify as the commerce engine while the experience layer is fully yours. We will also tell you honestly when a well-built Liquid theme is the smarter call.

How do you scope and quote a Shopify project?

Every engagement is scoped to your store: catalog size, apps, integrations, the number of markets, and the work involved. You get a firm, itemized quote on the first call, with no long sales cycle, so you know exactly what you are committing to before anything begins.

Can we hire your Shopify developers as an embedded team?

Yes. Alongside fixed-scope projects and retainers, we offer an embedded model where senior Shopify developers work as an extension of your in-house team without the hiring overhead.

Do you handle custom checkout, B2B, and Markets?

Yes. We build with checkout extensibility on Shopify Plus, set up B2B with company accounts and catalogs, and configure Markets for cross-border selling. It is the same senior team across all of it.

Build the Shopify store your catalog deserves.

Tell us where the store is stuck. We will come back within one business day with a real plan, a real timeline, and a real number.

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