Custom Shopify Plus Development FirmDevelopment Firm
We build custom Shopify Plus stores that scale. Headless, B2B, and checkout customizations included.
IRPR is a custom Shopify Plus development firm that builds high-performance stores using Shopify's Liquid, Hydrogen, Remix, and the Storefront API. We handle checkout extensibility, B2B/wholesale portals, and headless architectures on Next.js or Remix.
Every project ships in 8-12 weeks with fixed pricing from $80K to $250K. We handle PCI-DSS compliance, Shopify Payments integration, and custom checkout logic. You get full source code ownership and a CI/CD pipeline on GitHub Actions.
Enterprise ecommerce managers hire us to migrate from Magento or custom platforms. DTC brands hire us for headless storefronts. Wholesale distributors hire us for B2B portals. Agencies hire us as white-label development partners.
Types of software we ship.
Headless Shopify Plus storefront
React or Next.js frontend with Shopify as the backend. Uses Storefront API, Hydrogen, and custom cart logic for fast page loads.
Shopify Plus B2B portal
Custom wholesale login, tiered pricing, bulk ordering, and approval workflows. Integrates with NetSuite or QuickBooks for ERP sync.
Custom checkout on Shopify Plus
One-page checkout, multi-currency, custom fields, and upsell logic using Shopify Functions and checkout extensibility APIs.
Shopify Plus migration tool
Migrate from Magento, BigCommerce, or WooCommerce. Includes product data mapping, SEO redirects, and zero-downtime cutover.
Shopify Plus subscription app
Custom subscription engine for recurring orders. Integrates with Recharge, Bold, or builds native using Shopify Subscriptions API.
Shopify Plus multi-store dashboard
Unified admin for 10+ stores across regions. Manages inventory, pricing, and orders from one panel using Shopify Admin API.
Shopify Plus custom loyalty program
Points, tiers, referrals, and rewards. Syncs with Shopify customers and orders via webhooks. Uses Yotpo or custom logic.
Shopify Plus ERP integration
Real-time sync between Shopify Plus and NetSuite, SAP, or Microsoft Dynamics. Handles orders, inventory, and fulfillment automatically.
We build for every business type.
DTC brands
Wholesale distributors
Enterprise retail
B2B manufacturers
Subscription brands
Why hire a custom Shopify Plus development firm
Generic Shopify agencies build template stores. A custom development firm builds for your specific business rules.
IRPR treats every Shopify Plus project as a custom build. We write Liquid, JavaScript, and React code specific to your checkout logic, product data model, and B2B workflows. We do not install off-the-shelf themes and call it done.
Our team of senior engineers has shipped 200+ products across 50 countries. Every project includes a fixed price quote after the Roadmap phase (week 2). You know the total cost before we write production code.
How IRPR is different from other Shopify agencies
Most agencies bill hourly and scope creep happens. IRPR fixes price and scope in week 2.
We follow a four-phase process: Idea, Roadmap, Product, Release. In the Roadmap phase (week 2), we deliver a full spec and a fixed price quote. No changes after that without a formal change order.
We also own the DevOps. Every store gets a CI/CD pipeline on GitHub Actions, staging and production environments on Shopify Plus, and Sentry error tracking. You are not left with a codebase you cannot deploy.
- Hourly billing with no cap
- Uses pre-built themes
- No CI/CD pipeline
- No code ownership
- Scope creep every month
- No post-launch support
- Fixed price after Roadmap (week 2)
- Custom code in React, Liquid, Hydrogen
- CI/CD on GitHub Actions
- Full source code ownership
- Scope locked in spec
- 12-month warranty on all code
Our process for building your Shopify Plus store
From idea to launch in 8-12 weeks. Every phase has a clear deliverable.
We start with a 1-week Idea phase where we map your business requirements, data model, and API integrations. You get a technical feasibility report and a project timeline.
Then we move to Roadmap (week 2) where we deliver a full functional spec, wireframes, and a fixed price quote. After that, we build the Product in 6-10 weeks and Release with a zero-downtime deployment.
What ships with every Shopify Plus project
You get more than a store. You get a production-ready system.
Every project includes a fully configured Shopify Plus store, custom code in your repository, and a deployment pipeline. We also include documentation for your team.
Our warranty covers all code for 12 months. If something breaks, we fix it at no cost. You are not left with an unsupported codebase.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Staging and production Shopify Plus stores
- Custom Liquid, React, and Hydrogen code
- Shopify Functions for checkout customization
- Sentry error tracking and monitoring
- Post-launch documentation and runbook
- 12-month warranty on all code
- SSL certificate and CDN via Shopify
- SEO-friendly URL structure and redirects
What we ship in this practice.
Headless storefront for a fashion brand
Built a Next.js storefront with Shopify Plus as the backend. Reduced page load time from 4s to 1.2s. Integrated with Klaviyo for email flows. Tech stack: Next.js, Hydrogen, Shopify Storefront API, Vercel.
B2B wholesale portal for a manufacturer
Custom portal with tiered pricing, bulk ordering, and credit limit management. Syncs orders to NetSuite via API. Reduced manual order entry by 12 hours per week. Tech stack: Remix, Shopify Admin API, NetSuite.
Custom checkout for a supplement brand
One-page checkout with upsell logic and subscription options. Used Shopify Functions for dynamic shipping rates. Increased average order value by 18%. Tech stack: Liquid, Shopify Functions, Recharge API.
Multi-store dashboard for a retail chain
Unified admin panel for 15 stores across 3 countries. Manages inventory, pricing, and orders from one place. Reduced operational overhead by 30%. Tech stack: React, Shopify Admin API, PostgreSQL.
Migration from Magento to Shopify Plus
Migrated 50,000 products, 200,000 customers, and 500,000 orders with zero downtime. SEO redirects preserved all rankings. Cut hosting costs by 60%. Tech stack: custom Python scripts, Shopify Bulk Operations API.
Custom loyalty program for a beauty brand
Points, tiers, referrals, and rewards engine. Syncs with Shopify customers and orders via webhooks. Increased repeat purchase rate by 25%. Tech stack: Node.js, Shopify Admin API, Yotpo.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team averages 10+ years of experience. No junior developers. Every engineer has shipped production Shopify Plus stores.
Full code ownership
You own every line of code. No proprietary frameworks. No lock-in. You can take the code to any developer after launch.
12-month warranty
All code is under warranty for 12 months. If something breaks, we fix it at no cost. No retainer needed for bug fixes.
PCI-DSS compliance built in
Every store is built to PCI-DSS standards. We handle secure payment processing, data encryption, and compliance documentation.
Zero-downtime deployments
We deploy using blue-green strategy. Your store never goes down during updates. CI/CD pipeline runs automated tests before every deploy.
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.