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#e-commerce· freelance · worldwide

Shopify Plus Developer

I ship Shopify Plus stores that hold up at scale. Custom themes, checkout extensions, headless storefronts on Hydrogen, and the middleware that connects your Shopify data to ERPs, PIMs, and 3PLs.

Start a project6–14 weeks. Headless builds and B2B configurations sit at the longer end.

Shopify is the platform I trust for stores doing real revenue. Plus unlocks the parts that matter — checkout extensibility, multi-store orgs, B2B, and custom Liquid where it still wins. I have shipped stores from new merchants doing their first six figures to enterprise catalogs syncing tens of thousands of SKUs from external PIMs.

Most Shopify Plus engagements I take on are one of three shapes: a custom theme that needs to feel premium without breaking the merchant admin, checkout UI extensions that improve conversion without violating PCI scope, or a headless storefront on Hydrogen + Oxygen where the merchandising experience demands more than the theme layer can give.

I write Liquid where Liquid is the right answer, and React/TypeScript where Hydrogen is. Both. Pick the right tool for the route.

Who this is for

  • Brands on Shopify Plus that have outgrown the off-the-shelf theme experience
  • Merchants migrating from BigCommerce, Magento, or WooCommerce
  • DTC operators who want headless without the headless tax
  • Wholesale + B2B operators using Shopify B2B

Not the right fit if

  • Pure marketplace builds — Shopify is not the right primitive
  • Fully custom checkouts that need to bypass Shopify's checkout entirely (only Plus tier checkouts can be customized within bounds)

What you get

  • Custom Shopify Plus theme on the latest theme architecture
  • Checkout UI Extensions, Functions, and Pixels where they earn their place
  • Headless storefronts on Hydrogen + Oxygen when needed
  • Storefront API + Admin API integrations to ERP, PIM, 3PL
  • Subscription, membership, and post-purchase upsell flows
  • Performance budget: <2.5s LCP on product pages, <0.1 CLS
  • Two weeks free post-launch fixes

How it works

  1. 01

    30-minute audit call

    I look at your current store, your stack, and the bottlenecks. Fixed-price proposal in 48 hours.

  2. 02

    Architecture proposal

    Liquid theme vs Hydrogen, app stack, third-party integrations, performance budget — written down before code.

  3. 03

    Sprint to dev store

    Weekly demos on a Plus dev store. You see the work as it lands.

  4. 04

    Migration + launch

    Data migration, redirect map, launch checklist, post-launch monitoring.

Stack

  • Shopify Plus
  • Liquid
  • Hydrogen
  • Oxygen
  • Storefront API
  • Admin API
  • Checkout UI Extensions
  • Functions
  • Pixels
  • Klaviyo
  • Algolia
  • Recharge

Pricing

$8,000+ for custom theme builds, $25,000+ for headless on Hydrogen. Migrations quoted separately based on data volume.

Timeline

6–14 weeks. Headless builds and B2B configurations sit at the longer end.

FAQ

  • Liquid theme or headless on Hydrogen?

    Default to Liquid unless you have a specific reason to go headless: deep merchandising customization, content-heavy storefront, multi-region with sophisticated routing, or a brand experience that genuinely cannot be expressed in Liquid. Headless costs more to build and more to maintain. Choose with eyes open.

  • Will this break my apps?

    App compatibility is the first thing I check during scoping. I will list which apps work as-is, which need theme integration, and which become irrelevant. No surprises mid-build.

  • Can you customize the checkout?

    On Shopify Plus, yes — within bounds. Checkout UI Extensions for new fields, post-purchase, branding. Functions for custom discount logic, shipping methods, payment customization. The checkout itself remains hosted by Shopify, which is correct for PCI.

  • Do you handle data migration?

    Products, customers, orders, redirects, content. I write reusable migration scripts that work in dry-run mode first, then live. Migration plan is part of the proposal.

  • What about SEO during a replatform?

    Redirect map from old URLs to new, structured data on every PDP and PLP, server-rendered content, and a 30-day post-launch monitoring window for crawl errors and ranking drops.

Ready to start?

30-minute call, fixed-price proposal in 48 hours. No commitment until you sign.