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Shopify Plus Development Services

Enterprise Shopify Plus Development

Quecko builds and customizes enterprise-grade Shopify Plus stores engineered for massive volume. From custom checkout layouts (Checkout Extensibility) and headless commerce integrations to B2B wholesale portals and secure enterprise resource planning (ERP) connections, we scale your commerce operations with zero downtime.

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400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
What We Build

Comprehensive Shopify Plus Engineering

01

Checkout Extensibility Customization

Designing and building custom checkout extensions using Shopify's secure framework, adding upsells, loyalty validations, and localized compliance fields.

02

B2B & Wholesale Configurations

Setting up native B2B wholesale portals with custom customer price lists, payment term options (Net-30), bulk order grids, and custom tax rules.

03

Enterprise ERP Integrations

Writing secure middleware APIs to connect Shopify Plus with enterprise backbones—SAP, Microsoft Dynamics 365, Oracle NetSuite, and custom inventory databases.

04

Headless & Hydrogen Architectures

Developing lightweight headless frontends utilizing Shopify's Hydrogen framework and Oxygen hosting for high-performance storefronts.

05

Shopify Flow & Script Automations

Automating operational workflows and in-checkout discount/shipping rules using Shopify Flow, custom Shopify Functions, and serverless scripts.

06

Internationalization & Multi-Store

Architecting expansion store frameworks to support multi-language, multi-currency, and localized tax configurations across different regions.

The Challenge

High-volume retail requires enterprise-grade architecture. Templates won't cut it.

Enterprise e-commerce operations deal with complex challenges: multi-currency transactions, international tax localization, separate retail and B2B workflows, and synchronization with back-office inventory systems. Relying on basic configurations or unstructured apps leads to data sync failures, checkout bottlenecks during high-traffic events, and unmaintainable legacy architectures. Shopify Plus offers the capabilities, but unlocking its potential requires specialized engineering. Quecko customizes Shopify Plus systems—building custom checkout features via Checkout Extensibility, implementing headless architectures, configuring B2B channels, and writing secure middleware to bridge your store with enterprise ERPs.

Execution Blueprint

From Day 1 to Day 120: What Shopify Plus Execution Looks Like

01Day 1–15

Audit & Strategy

Auditing backend ERP databases, mapping API logic, detailing B2B pricing rules, and drafting checkout extensions.

02Day 16–60

Hydrogen/Theme & Checkout Build

Developing frontend templates (Hydrogen or custom liquid), building checkout extensions, and setting up B2B workflows.

03Day 61–90

ERP & Middleware Integration

Writing API adapters to sync with NetSuite/SAP, automated workflows, and shipping carriers.

04Day 91–120

Stress Testing & Release

Simulating peak checkout surges (Black Friday volumes), verifying financial ledgers, and managing launch cutover.

Technology

Technologies We Master

Tools, frameworks, and protocols we use to build secure and scalable solutions.

Languages

LiquidLiquid
JavaScriptJavaScript
TypeScriptTypeScript
Remix (for Hydrogen)Remix (for Hydrogen)

Frameworks

Shopify Hydrogen (React)Shopify Hydrogen (React)
Oxygen HostingOxygen Hosting
Checkout UI ExtensionsCheckout UI Extensions

Integrations

Shopify Admin API (GraphQL)Shopify Admin API (GraphQL)
Customer Account APICustomer Account API
Shopify FunctionsShopify Functions

Middleware & Backend

Node.jsNode.js
PythonPython
PostgreSQLPostgreSQL
AWS ServerlessAWS Serverless

Enterprise ERPs

SAPSAP
Microsoft Dynamics 365Microsoft Dynamics 365
Oracle NetSuiteOracle NetSuite
SalesforceSalesforce
Our Edge

We Build Scalable Enterprise Commerce Solutions.

We build custom checkout extensions using Shopify's modern API-driven framework, deprecating legacy checkout.liquid files.

Checkout Extensibility Experts

We build custom checkout extensions using Shopify's modern API-driven framework, deprecating legacy checkout.liquid files.

Hydrogen Headless Pioneers

We design ultra-fast headless stores using React/Remix, reducing latency and decoupling layouts from the backend.

Rock-Solid Enterprise Bridges

Our experience building complex database backends allows us to build reliable, high-performance sync systems for SAP and NetSuite.

250+ Products Shipped

We combine product UX design with enterprise engineering standards to deliver secure, performant commerce ecosystems.

Our Work

Our Projects

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Social Proof

“The work Quecko has done has been absolutely brilliant. Extremely responsive, reliable, and fast — we can throw last minute requests in and they'll get them done by the end of the day.”

Tom Blears

Chief Executive Officer, Bitcast
Engagement

How We Collaborate

Dedicated Enterprise Pod

Full-time systems architects, React/Remix developers, Liquid engineers, and middleware QA maintaining your Shopify Plus stack.

End-to-End Headless Migration

Fixed-scope transition of your storefront to a headless React/Hydrogen model.

ERP Integration & Sync Optimization

Dedicated project to build or audit custom sync APIs between Shopify and your back-office ERP/inventory manager.

FAQ

Frequently Asked Questions

Shopify has deprecated legacy `checkout.liquid` layouts for security and speed. Checkout Extensibility is the new API-driven framework that allows developers to build app-like blocks (upsells, custom fields, checks) directly within the secure Shopify checkout flow.

Shopify Plus includes native B2B capabilities, allowing you to run your D2C and wholesale operations from a single store. It supports custom price lists, payment term options (like Net-30), bulk order forms, and customer profile management.

Yes. Hydrogen is Shopify's official headless commerce framework built on React and Remix. We build custom frontends in Hydrogen and deploy them to Shopify's Oxygen hosting platform for ultra-fast, global delivery.

We build event-driven middleware. When stock allocations change in your ERP (NetSuite, SAP), the system triggers a webhook to our middleware API, which updates Shopify Plus stock quantities in real-time.

Blogs

Latest Stories from Quecko

Ready to optimize your enterprise Shopify Plus storefront?

From Checkout Extensibility blocks and Shopify Hydrogen headless migrations to B2B channels and enterprise ERP integrations — Quecko builds commerce engines designed for scale.

Talk to an Enterprise E-commerce ArchitectView Our Portfolio