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Shopify · Apps · Checkout · Functions

Custom Shopify app development.

Custom Shopify apps, checkout and payment integrations, Shopify Functions and headless storefronts for logic the App Store cannot give you.

What I build
Example · Admin GraphQL API
query RecentOrders {
  orders(first: 5, sortKey: CREATED_AT, reverse: true) {
    nodes {
      name
      totalPriceSet { shopMoney { amount currencyCode } }
    }
  }
}
Built with
Node.js + React
APIs
GraphQL Admin
Code ownership
100% yours

Why custom

When the App Store runs out.

Logic the App Store cannot give you

Custom pricing rules, product builders, order workflows and checkout behaviour, written for your business instead of bolted on through three apps.

Checkout and payments done properly

I built a custom checkout app that integrates Square payments for Genix Flooring. Payment logic is the work other developers avoid.

Connected to your other systems

Sync with your ERP, CRM, 3PL or spreadsheets through the GraphQL Admin API and webhooks, so data stops being copied by hand.

What I build.

  1. 01

    Custom and private apps

    Admin apps, theme app extensions and background jobs built on the GraphQL Admin API. If an app does not exist for what you need, or three apps are doing the job of one, I will build the one.

  2. 02

    Checkout, payments and Shopify Plus

    Payment gateway integrations, checkout customization with Functions and checkout extensibility, and Plus-specific requirements. Payment code gets extra care: test mode first, then staged rollout.

  3. 03

    Headless with Hydrogen

    When you need a fully custom storefront, I build with Hydrogen and the Storefront API. I will also tell you plainly when a well-built theme would serve you better and cost less.

  4. 04

    Integrations

    ERP, 3PL, CRM, accounting and spreadsheet integrations through webhooks and the Admin API, with retries and logging so a failed sync is visible instead of silent.

The stack

Boring, reliable tools.

from $2,500

Scoped before it's built

Custom apps vary a lot, so I review the requirements first and tell you plainly if a spec won't hold up technically. Work happens on a development store and staging, in Git, with a handoff note on every task.

Shopify App Development FAQ.

Do you build public App Store apps or private apps?
Mostly custom and private apps for a single store or brand. If you want to publish to the App Store, I can build to that standard too.
Can you customize checkout on Shopify Plus?
Yes, using checkout extensibility and Shopify Functions. I will also tell you what is not possible on your plan before you commit.
Do you work on payment gateway integrations?
Yes. For example, a custom checkout app integrating Square payments for Genix Flooring. I test in sandbox first and roll out in stages.
What stack do you use?
Node.js and TypeScript, React with Polaris for admin UI, the GraphQL Admin API, and Liquid for theme extensions. Hydrogen when headless is the right fit.
How is a custom app priced?
Apps start at $2,500. I give you a realistic estimate after reviewing the requirements, and I will say so if a spec will not hold up technically.

Ready when
you are.

Tell me what you need. You get an honest estimate after a read-only look at your store, and you pay nothing for the conversation.

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