Service / 03
App Engineering
App 工程
The problem we solve
The business rule you need simply does not exist in native Shopify.
Custom pricing logic, order validation, backend integrations, admin tools — when the store needs a behavior Shopify cannot express out of the box, you need software, not workarounds.
Turning merchant-specific business logic into stable, maintainable apps and extensions.
//What we build
Capabilities
/01
Custom App
Solving business problems native Shopify cannot cover.
/02
Admin App
Business tools inside Products, Orders and Customers contexts.
/03
Theme App Extension
Inject app features safely instead of patching theme code.
/04
Checkout UI Extensions
UI and interactions in the allowed Checkout surfaces.
/05
Shopify Functions
Discounts, validation, delivery and fulfillment logic.
/06
Webhooks + Queue + Retry
Reliable sync for orders, inventory, customers and products.
//Delivery
What you get
- Custom App MVP with API
- Admin / Theme / Checkout extensions
- Shopify Functions for commerce logic
- Webhook pipeline with retry
- App lifecycle & maintenance docs
//Stack
Technology involved
Every technology above is tied to a business problem — the details live in our engineering standards.
//Evidence
Related case studies
New-customer gift program — live in 15 days across US, EU and UK
15 days
Time to launch
US · EU · UK
Markets
Zero changes
Existing flow
Dedicated SKUs for customizable products — zero extra steps for shoppers
Zero added
Shopper steps
Shared
Stock
Automatic
SKU split
Automatic discount price display — show sale prices before the cart
3
Display surfaces
Variant-level
Pricing
Zero
Collection requests
//In practice
What the work actually looks like
Real code from the kind of systems we ship — not a screenshot, not a promise.
// Shopify webhook: order.created
export async function onOrderCreated(req) {
const order = await verifyWebhook(req);
await queue.enqueue({ type: "order.created", orderId: order.id });
return { ok: true };
}actual production code
Next step
Have a complex app engineering problem?
Start with a Commerce Architecture Review — a scoped audit of your theme, data flow and roadmap. No pitch, just engineering.