Full-Stack Shopify Plus Development ServicesDevelopment Services
We build custom Shopify Plus stores with headless frontends and backend integrations. You get a production-ready store in 12 weeks with no surprise invoices.
IRPR builds full-stack Shopify Plus stores using Next.js storefronts, custom Shopify apps in Node.js, and integrations with ERP systems like NetSuite and Acumatica. We handle every layer from the checkout to the admin API.
Each project ships with a headless frontend, custom checkout extensions, and a CI/CD pipeline on GitHub Actions. Typical timeline is 12-14 weeks. Pricing starts at $80K and goes to $250K for complex multi-store setups. All stores are PCI-DSS Level 1 compliant.
We work with DTC brands scaling past $5M in revenue, B2B wholesalers needing custom pricing engines, and retailers migrating from Magento or custom platforms to Shopify Plus. Each client gets a dedicated senior engineer and a fixed price.
Types of software we ship.
Headless Shopify Plus storefront
Next.js or Remix frontend with Shopify Storefront API. Full control over SEO and page speed.
Custom Shopify Plus checkout
Custom checkout UI using Shopify Functions and checkout extensibility. Supports subscriptions and upsells.
Shopify Plus B2B portal
Company-specific catalogs, net terms, and volume pricing via Shopify Plus B2B APIs. Integrates with QuickBooks.
Custom Shopify app development
Private or public apps using Node.js and Shopify Admin API. Handles inventory sync and order routing.
Shopify Plus migration service
Migrate from Magento, WooCommerce, or custom PHP stores to Shopify Plus. Includes data mapping and zero-downtime cutover.
Shopify Plus ERP integration
Real-time sync between Shopify Plus and NetSuite, Acumatica, or Microsoft Dynamics. Handles 10,000+ SKUs.
Shopify Plus subscription engine
Recurring billing with Recharge or custom subscription logic using Shopify Subscriptions API. Supports 5+ plan tiers.
Shopify Plus multi-store management
Centralized admin for 5+ Shopify Plus stores across regions. Uses Shopify Markets for currency and localization.
We build for every business type.
DTC and retail brands
B2B and wholesale
Healthcare and regulated
Subscription and membership
High-volume and enterprise
Full-Stack Shopify Plus Development Services by the Numbers
Every project we ship has measurable results backed by real data.
IRPR has shipped 200+ products across 50 countries. Our Shopify Plus projects average a 12-week timeline from kickoff to production. We maintain a 98% on-time delivery rate across all engagements.
Our stores handle 10,000+ concurrent users during Black Friday traffic spikes. We use Shopify Plus's built-in CDN and our own edge caching with Fastly to keep load times under 200ms.
Why Generic Agencies Fail at Full-Stack Shopify Plus Development
Most agencies hand off a half-baked store with no backend integration. IRPR builds the whole stack.
Generic dev shops often use page builders and pre-built themes that break on Shopify Plus's advanced features. They skip custom checkout extensions and leave API integrations to the client. The result is a store that cannot scale past 1,000 orders per day.
IRPR builds every layer from scratch. We write custom Liquid or React components for the frontend, Node.js apps for backend logic, and use Shopify Functions for checkout customization. Every project ships with a CI/CD pipeline and automated testing.
- Uses pre-built themes with limited customization
- No custom Shopify app development
- Checkout stays default with no upsells or subscriptions
- Manual ERP integration via CSV exports
- No CI/CD or automated testing
- Hourly billing with scope creep
- Custom headless storefront in Next.js or Remix
- Built-from-scratch Shopify apps in Node.js
- Custom checkout with Shopify Functions for subscriptions and upsells
- Real-time ERP sync via REST or GraphQL APIs
- CI/CD pipeline on GitHub Actions with Sentry error tracking
- Fixed price from Roadmap phase with no surprises
Our Full-Stack Shopify Plus Development Process
We follow a 4-phase framework: Idea, Roadmap, Product, Release. Each phase has clear deliverables.
In the Idea phase (week 1), we map your business requirements to Shopify Plus capabilities. We identify which APIs and extensions you need, from checkout to admin.
The Roadmap phase (week 2) produces a fixed-price quote and a detailed build plan. The Product phase (weeks 3-10) builds the store, custom apps, and integrations. The Release phase (weeks 11-12) handles QA, load testing, and deployment.
What Ships with Every Full-Stack Shopify Plus Project
Every project includes these deliverables. No hidden items.
When we finish a project, you own the full codebase. Source code is in your GitHub repo. The store runs on Shopify Plus with a custom domain and SSL. You get admin access to everything.
We also provide documentation for your team: API endpoints, deployment instructions, and troubleshooting guides. Our support continues for 30 days after launch.
- Source code in your GitHub repository
- CI/CD pipeline on GitHub Actions with automated tests
- Custom headless storefront in Next.js or Remix
- Custom Shopify app in Node.js (private or public)
- Custom checkout with Shopify Functions
- Real-time ERP integration (NetSuite, Acumatica, or QuickBooks)
- Data migration from your old platform (Magento, WooCommerce, or custom)
- Load testing report with K6 showing 10,000 concurrent users
- Sentry error tracking and Datadog monitoring
- 30 days post-launch support and documentation
What we ship in this practice.
Headless storefront for a fashion brand
Built a Next.js storefront with Shopify Storefront API. Reduced page load time from 4 seconds to 1.2 seconds. Increased conversion rate by 18%. Tech stack: Next.js, Tailwind CSS, Shopify Plus, Fastly CDN.
Custom checkout for a subscription box service
Added subscription upsells and one-click reorder using Shopify Functions. Increased average order value by 22%. Tech stack: Shopify Functions, Node.js, PostgreSQL, Stripe.
B2B portal for a wholesale distributor
Built company-specific catalogs and net terms with Shopify Plus B2B APIs. Reduced order processing time from 30 minutes to 5 minutes. Tech stack: Shopify Plus, Node.js, QuickBooks API, React.
Multi-store management for a global retailer
Unified 5 Shopify Plus stores under one admin using Shopify Markets. Handled 50,000 SKUs across 3 currencies. Reduced operational overhead by 35%. Tech stack: Shopify Plus, Node.js, AWS Lambda, Shopify Admin API.
ERP integration for a medical device seller
Synced inventory and orders between Shopify Plus and NetSuite in real time. Eliminated manual data entry for 1,200 SKUs. Tech stack: Shopify Plus, NetSuite SuiteTalk, Node.js, RabbitMQ.
Custom app for a supplement brand
Built a private Shopify app for subscription management and loyalty rewards. Reduced churn by 15% within 3 months. Tech stack: Node.js, Shopify Admin API, PostgreSQL, Recharge API.
Why teams hire us.
Fixed price, not hourly
Every Shopify Plus project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we write a line of code.
Senior engineers only
Our team averages 10+ years of experience. Every project has a dedicated senior developer who knows Shopify Plus APIs, Node.js, and React. No junior devs learning on your dime.
PCI-DSS Level 1 compliance built in
All stores we build are PCI-DSS Level 1 compliant by default. We handle SAQ A-EP and SAQ D requirements. Your customers' payment data is secure from day one.
12-week MVP guarantee
We ship a production-ready Shopify Plus store in 12 weeks. If we miss the deadline, you pay nothing for the final two weeks. This is written into every contract.
You own all the code
Every line of code we write goes into your GitHub repository. No proprietary frameworks, no licensing fees, no lock-in. You can take the store to any team after launch.
200+ products shipped across 50 countries
We have built Shopify Plus stores for clients in 50 countries. Our experience spans DTC, B2B, subscription, and enterprise use cases. Every project starts with lessons from the previous 200.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.