Hire Shopify Plus Development AgencyDevelopment Agency
We build custom Shopify Plus stores for high-volume merchants. Fixed pricing, senior engineers only, delivered in 12 weeks.
When you hire a Shopify Plus development agency, you need a partner that understands high-volume commerce. IRPR builds custom Shopify Plus stores using Liquid, React, Node.js, and integrates with Stripe, Klaviyo, and Recharge. We focus on scale, performance, and compliance.
Every project ships within 12 to 14 weeks. Pricing ranges from $80,000 to $250,000 depending on complexity. We handle PCI-DSS certification for payment processing and SOC 2 for data handling. You get a fixed price after the Roadmap phase (week 2).
We work with ecommerce brands moving to Shopify Plus, direct-to-consumer companies scaling past $5M annual revenue, and enterprise businesses migrating from Magento or custom platforms. Our clients need a development partner that delivers on time and owns the outcome.
Types of software we ship.
Custom Shopify Plus Theme
Tailored storefront built with Liquid and React. Includes custom product pages, checkout styling, and mobile-first design.
Shopify Plus App Development
Private or public apps using Node.js and the Shopify Admin API. Extends store functionality for subscriptions, loyalty, or custom workflows.
B2B Wholesale Portal
A separate login area for wholesale buyers with tiered pricing, bulk ordering, and approval flows. Uses Shopify Plus B2B APIs and custom authentication.
Multi-Store Management System
Manage multiple Shopify Plus stores from a single dashboard. Sync inventory, products, and orders across regions using custom middleware and Admin API.
Headless Commerce Storefront
Decoupled frontend using Next.js or Gatsby. Connects to Shopify Plus via Storefront API. Enables fast pages and seamless omnichannel experiences.
ERP and CRM Integration
Two-way sync between Shopify Plus and NetSuite, SAP, or Salesforce. Automates orders, inventory, and customer data with real-time webhooks and middleware.
Subscription Platform
Custom subscription engine on Shopify Plus with flexible billing cycles, product swaps, and customer portals. Integrates with Recharge or Stripe Billing.
Custom Checkout Experience
Extend or replace Shopify Plus checkout with custom fields, upsells, and one-click reorder. Uses Checkout Extensibility and hosted payment pages.
We build for every business type.
high-growth brands
B2B and wholesale
subscription businesses
multi-brand retailers
enterprise migrations
Why hire a Shopify Plus development agency for your store
IRPR delivers Shopify Plus projects faster and with higher quality than internal teams or hourly agencies.
We use a fixed-price model based on a detailed Roadmap. In week 2, after the Roadmap phase, you get a fixed quote. No hourly billing, no surprises. Our senior engineers only work on one project at a time, which keeps delivery on schedule.
Every store we build ships with PCI-DSS compliance, 99.9% uptime SLA, and full source code ownership. We've shipped over 200 products across 50 countries. Our track record includes stores that handle surge traffic during Black Friday and Cyber Monday without issues.
How IRPR differs from other Shopify Plus agencies
Many agencies sell you a team but deliver junior developers and endless revisions. IRPR gives you senior engineers and fixed deadlines.
Generic Shopify agencies often use a mix of junior and mid-level developers. They bill by the hour and rarely meet deadlines. You end up paying for scope creep and rewrites. With IRPR, you get a team of senior engineers who average 10+ years of experience. Every project has a fixed scope and price from week 2.
We also handle compliance from day one. Shopify Plus stores that process credit cards need PCI-DSS compliance. We build with that requirement in mind. Our checklist includes penetration testing, secure API keys, and audit logging. No last-minute scrambling for compliance.
- Hourly billing with no cap
- Mixed junior and senior developers
- Scope changes cause delays and cost overruns
- No dedicated project manager
- Compliance handled after the fact
- Code ownership often disputed
- Fixed price after Roadmap phase (week 2)
- Senior engineers only, 10+ years experience
- Scope frozen in Roadmap, no surprises
- Dedicated project manager with weekly reports
- PCI-DSS and SOC 2 built in from start
- Full source code ownership, you get the repo
Our process when you hire a Shopify Plus development agency
We follow a repeatable 4-phase process that guarantees delivery in 12 to 14 weeks.
Phase 1 (Idea): You tell us your business requirements, target customers, and must-have features. We review your existing tech stack if migrating. This phase takes 1 week and ends with a draft scope document.
Phase 2 (Roadmap): In week 2, we create a detailed technical specification with wireframes, data model, API integrations, and compliance checklist. You approve the Roadmap, and we lock the scope and price. No changes after this without a change order.
What we deliver when you hire us as your Shopify Plus development agency
Every project ships with a complete set of deliverables, not just a live store.
We believe in transparency. That means you get the source code, deployment scripts, and monitoring tools from day one. No black boxes. You can take the code to any other agency after the project ends.
- Source code in your private GitHub repository
- CI/CD pipeline using GitHub Actions
- Staging and production environment on Shopify Plus
- PCI-DSS compliance report
- Load test results for peak traffic (e.g., 10x normal)
- Sentry error tracking and New Relic performance monitoring
- Technical documentation including architecture diagrams
- Admin training session (1 hour for your team)
- 30-day post-launch support with 4-hour response SLA
- Full ownership of all code and configurations
What we ship in this practice.
Custom B2B wholesale portal
Built a private store for a manufacturing client with tiered pricing, bulk order form, and automated approval workflows. Integrated with NetSuite ERP for inventory sync. Reduced manual order processing by 15 hours per week. Tech: Shopify Plus, Node.js, Stripe, NetSuite SuiteTalk.
Headless DTC storefront
Replaced a Magento store for a fashion brand doing $10M annual revenue. Used Next.js for the frontend and Shopify Plus for the backend. Page load times dropped from 5 seconds to under 1 second. Conversions increased by 22%. Tech: Next.js, Shopify Plus Storefront API, Vercel, Contentful.
Multi-region subscription platform
Built a subscription engine for a meal kit company that ships to 3 countries. Handled recurring billing in multiple currencies, product swaps, and pausing. Integrated with Recharge and Stripe Tax. Customer churn dropped by 18%. Tech: Shopify Plus, Recharge, Node.js, AWS Lambda.
Enterprise ERP integration
Synced a Shopify Plus store with SAP for a hardware retailer. Real-time order, inventory, and customer data flow. Eliminated manual data entry and reduced order errors by 90%. Tech: Shopify Plus Admin API, SAP OData, Celery, PostgreSQL.
Custom checkout with upsells
Extended the Shopify Plus checkout for a wellness brand. Added one-click upsells, gift message fields, and saved address suggestions. Average order value increased by 35%. Tech: Shopify Checkout Extensibility, React, Stripe, Klaviyo.
Marketplace for multi-brand retailer
Created a marketplace where 50+ vendors sell under one domain. Used Shopify Plus with custom vendor dashboards, commission splitting, and automated payouts. Reduced vendor onboarding time from 4 weeks to 2 days. Tech: Shopify Plus, Node.js, Stripe Connect, SendGrid.
Why teams hire us.
Fixed price, not hourly billing
Every project gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. Our average project costs $80,000 to $250,000.
Senior engineers only
We hire only engineers with 10+ years of experience. No juniors, no offshore teams. Each engineer works on one project at a time, giving you full focus. Our team has shipped 200+ products.
PCI-DSS compliance built in
We build every Shopify Plus store with PCI-DSS compliance from day one. Our checklist includes encrypted checkout, tokenized payments, and regular audits. You pass your annual assessment without rework.
Full source code ownership
You own everything we build. The source code is in your GitHub repository from the first commit. No licensing fees, no lock-in. You can move to any agency after the project ends.
12-week delivery guarantee
Our 4-phase process (Idea, Roadmap, Product, Release) delivers in 12 weeks on average. We have a 98% on-time track record. If we miss the deadline, we provide one month of free support.
Dedicated project manager with weekly reports
You get a single point of contact who coordinates with engineers, runs standups, and sends weekly progress reports. We use Jira and Slack for real-time updates. No more chasing people for status.
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.