Shopify Plus Development Services
With over 15 years of experience, more than 300 certifications, and a portfolio of enterprise success stories, Atwix delivers Shopify Plus development services that drive measurable business results.
When your eCommerce business outgrows basic Shopify, you need a development partner who understands the complexity of enterprise-level commerce. Atwix specializes in Shopify Plus development services that transform high-volume stores into scalable, revenue-generating powerhouses. As certified Shopify Plus Partners, we’ve spent 15+ years building sophisticated eCommerce solutions for brands that demand more than out-of-the-box features.
Whether you’re migrating from Magento, WooCommerce, or BigCommerce, or scaling your existing Shopify store to handle millions in transactions, our team delivers the custom development, seamless integrations, and ongoing optimization your business requires. We don’t just build Shopify Plus stores—we architect complete commerce ecosystems that eliminate bottlenecks, reduce manual workflows, and position your brand for exponential growth.
From custom theme development and headless commerce architectures to complex ERP integrations and B2B portals, our Shopify Plus development services are designed for businesses that refuse to compromise on performance, functionality, or customer experience. We combine deep technical expertise with a customer-centric approach, ensuring every line of code serves your ultimate goal: converting browsers into buyers and one-time customers into brand advocates.
With 300+ expert certifications, 24/7 global support, and a portfolio spanning luxury retail, manufacturing, biotechnology, and beyond, Atwix is the Shopify Plus development agency that enterprise brands trust when the stakes are high and mediocrity isn’t an option.
Who Is This For?
We partner with CEOs, CTOs, Heads of Digital, and eCommerce Managers who are scaling their businesses on Shopify or Shopify Plus.
If you need:
Migration to Shopify Plus
Seamless migration to Shopify Plus from platforms like Magento, WooCommerce, or BigCommerce without losing SEO rankings or customer data.
Custom
Features
Shopify custom development tailored to your unique brand identity, complex product configurations, and specific business requirements.
Performance Optimization
Ongoing performance tuning to reduce load times, improve Core Web Vitals, and boost conversions through speed optimization.
Expert
Guidance
Advanced integrations, headless commerce setups, or custom Shopify apps developed by certified Shopify Experts with proven track records.
…then you’ve come to the right Shopify Plus development company
Why Choose Atwix for Shopify Plus Development?
We’re more than just a Shopify development company—we’re your long-term growth partner. As a Shopify Partner, we’ve built a reputation for excellence, innovation, and client success.
Custom Shopify Website Development
Expert-level knowledge in Shopify custom theme development, headless commerce, and complex integrations. We build stores that scale with your business.
Full-Service Approach
End-to-end solutions—from design and development to marketing strategy and continuous optimization. One partner for all your Shopify needs.
Proven Track Record
15+ years in eCommerce. Our clients generate millions of dollars in revenue through our eCommerce solutions. Check our case studies for real results.
24/7 Dedicated Support
We offer round-the-clock assistance for any technical or strategic needs. Your success is our priority, every hour of every day.
Future-Ready Technology
AI-driven insights, automation, headless architecture, and advanced integrations keep your store ahead of the curve and your competition.
Don’t settle for average. Work with Shopify & Shopify Plus experts who understand how to drive real business growth.
Atwix vs. Competitors
| Feature | Atwix | Typical Competitors |
|---|---|---|
| Shopify Partnership Status | ✅ Certified Shopify Plus Partner | ⚠️ Often lacks official Partner status |
| Certified Experts | ✅ 5 Shopify certifications | ❌ Generalist agencies with minimal certifications |
| Custom Development Expertise | ✅ Tailored themes, headless commerce, complex integrations | ⚠️ Limited to template-based solutions |
| Years of Experience | ✅ 15+ years in enterprise eCommerce (since 2006) | ⚠️ Typically 2-5 years, less depth |
| Ongoing Store Management | ✅ 24/7 monitoring, updates, and optimization | ❌ Minimal post-launch support |
| Platform Agnostic | ✅ Adobe Commerce, Shopware, BigCommerce expertise | ❌ Single-platform focus limits flexibility |
| Headless & API Expertise | ✅ Cutting-edge PWA, API-first architecture | ⚠️ Often lacks technical sophistication |
| B2B & Complex Commerce | ✅ Specialized in B2B portals, ERP integration, and custom pricing | ❌ Focus on B2C, limited B2B capability |
| Growth Strategy & Consulting | ✅ Dedicated strategic guidance & marketing integration | ❌ Development-only, no strategic partnership |
| SEO & Performance Built-In | ✅ Optimized for speed, accessibility, and SEO from day one | ⚠️ Extra cost or not offered |
| Industry-Specific Expertise | ✅ Manufacturing, luxury retail, electronics, logistics, biotech | ⚠️ Generic approach across all verticals |
| Case Study Portfolio | ✅ Wilson Sporting Goods, Reinders, Sony Biotech, Interior Define | ⚠️ Limited or no verifiable success stories |
The Atwix Shopify Plus Development Process
Our Shopify development services are tailored to the needs of your business. Our expert developers follow a proven methodology to guarantee success.
01
Discovery & Strategy
We assess your current eCommerce setup, identify your existing pain points, and align with you on your business goals to create a customized strategy that aligns with your objectives and market.
02
Custom Shopify Development
Using modern development techniques, our development team builds or optimizes your Shopify site to maximize speed, conversions, and user experience (UX).
03
Shopify Migration
Our Shopify experts ensure a seamless transition from other platforms to Shopify, resulting in a solution that’s easier to use and manage.
04
App Development & Integration
We expand your store’s capabilities as needed by creating customized Shopify integrations with your business software, including ERP (Enterprise Resource Planning) and CRM (Customer Relationship Management), among others.
05
Quality Assurance & Testing
Our QA team performs rigorous testing to ensure the performance, security, and UX of your Shopify store, guaranteeing a successful launch.
06
Ongoing Growth & Optimization
We provide ongoing support after launch, helping you with updates, optimizations, and more, so you can focus on what matters most for your business.
Our Shopify Plus Development Services
Custom Shopify Development
Build a store that’s as unique as your brand. Our custom Shopify Plus development services include bespoke theme development, advanced product configurators, dynamic filtering systems, custom checkout flows, and personalized shopping experiences powered by customer data. Whether you need a luxury brand aesthetic or a complex B2B portal, we craft solutions that reflect your brand identity and serve your business goals.
When to choose this: Unique brand requirements, complex product catalogs, sophisticated user journeys, and premium brand positioning.
Theme Customization
Transform existing Shopify themes into pixel-perfect expressions of your brand. Our designers and developers are experts in Liquid (Shopify’s templating language), enabling us to customize themes with surgical precision. We optimize layouts for conversion, enhance mobile responsiveness, and add custom functionality without compromising site performance.
When to choose this: Faster time-to-market with theme foundation, budget-conscious projects, and existing themes requiring enhancements.
Theme Customization
Transform existing Shopify themes into pixel-perfect expressions of your brand. Our designers and developers are experts in Liquid (Shopify’s templating language), enabling us to customize themes with surgical precision. We optimize layouts for conversion, enhance mobile responsiveness, and add custom functionality without compromising site performance.
When to choose this: Faster time-to-market with theme foundation, budget-conscious projects, and existing themes requiring enhancements.
Shopify Integration
Connect Shopify Plus to your entire tech stack. We build robust integrations with ERP systems for real-time inventory synchronization, CRM platforms for unified customer data, PIM solutions for product information management, payment gateways, loyalty programs, POS systems, shipping carriers, marketing tools, and custom APIs. Our integration approach prioritizes data accuracy, automation, and scalability.
Popular integrations: NetSuite, SAP, Salesforce, HubSpot, Klaviyo, Yotpo, TaxJar, ShipperHQ, Celigo, and custom middleware solutions.
Shopify Migration
Move to Shopify Plus with confidence. Our migration services handle the entire transition—from initial planning and data mapping to execution and post-migration optimization. We ensure that product data, customer records, order history, blog content, and SEO equity are transferred seamlessly and accurately. Our methodology includes staging environment testing, rollback procedures, and a detailed launch checklist to minimize risk.
Migration timeline: Typically 8-16 weeks, depending on the complexity of the data and customization requirements.
Mobile Development
Deliver exceptional mobile experiences. We optimize Shopify Plus stores for mobile performance, implement Progressive Web App (PWA) capabilities, and develop native mobile apps when necessary. With mobile commerce accounting for over 70% of eCommerce traffic, mobile optimization is no longer optional—it’s essential for a competitive advantage.
Mobile focus areas: Touch-friendly navigation, fast load times, mobile checkout optimization, app-like experiences.
Ongoing Support & Optimization
Your store should get better over time, not stagnate. Our ongoing support services include performance monitoring, security updates, feature enhancements, A/B testing, conversion rate optimization, and strategic consulting. We proactively identify opportunities for improvement, keeping your store ahead of industry trends.
Support packages: Bronze (monitoring and security), Silver (monthly optimizations), Gold (strategic consulting and priority support).
Industries Served
Atwix has delivered successful Shopify Plus development projects across diverse industries, each with unique challenges and requirements:
Why Choose Shopify for eCommerce?
Enterprise-Grade Infrastructure
Shopify Plus offers unlimited bandwidth and guarantees 99.99% uptime, ensuring your store remains online even during periods of peak traffic. The platform automatically scales to handle Black Friday-level traffic without performance degradation.
Customizable Checkout
Unlike standard Shopify, Shopify Plus enables complete checkout customization, allowing you to add custom fields, modify the checkout flow, implement complex discount logic, and create branded checkout experiences that increase conversion rates.
Higher API Limits
Process more transactions, sync data faster, and connect to more systems with 10x higher API limits compared to standard Shopify plans. Critical for businesses with complex integrations.
Automation & Workflows
Shopify Flow enables powerful automation—automatically tagging high-value customers, triggering marketing campaigns, managing inventory levels, and handling fraud detection without manual intervention.
Multi-Store Management
Manage multiple brands, regional stores, or wholesale portals from a single dashboard. Perfect for businesses operating across geographies or market segments.
Dedicated Support
Shopify Plus merchants receive priority support with dedicated account managers, faster response times, and access to beta features.
Proven Scalability
Shopify Plus powers brands like Gymshark, Heinz, and Kylie Cosmetics—stores processing millions in revenue monthly. The infrastructure is battle-tested at enterprise scale.
When Shopify Plus Makes Sense
Shopify Plus is ideal when your business:
Processes $1M+ in annual revenue and needs enterprise features
Requires complex B2B functionality alongside B2C operations
Needs custom checkout workflows for improved conversion
Demands higher API limits for sophisticated integrations
Operates multiple brands or international stores
Values ease of use without sacrificing advanced capabilities
Wants to reduce technical overhead compared to open-source platforms
Frequently Asked Questions
Got some questions? We’re here to answer. If you don’t see your question here, drop us a line with out Contact form.
What is the difference between Shopify and Shopify Plus?
Shopify Plus is the enterprise-level version of Shopify designed for high-growth businesses. Key differences include unlimited bandwidth, customizable checkout, higher API limits (10 times the standard Shopify), automation capabilities via Shopify Flow, multi-store management, dedicated account management, and access to exclusive apps. Shopify Plus starts at $2,000/month and is ideal for businesses that process over $1 million in annual revenue or require advanced B2B functionality.
Why should I hire Shopify Plus experts instead of building in-house?
Hiring a Shopify Plus development agency like Atwix gives you immediate access to 15+ years of eCommerce expertise, 300+ certifications, and a proven methodology. Building in-house requires recruiting specialized developers (with an average salary of $120K+), training them on Shopify Plus architecture, and managing their ongoing professional development. With Atwix, you get a whole team—developers, designers, QA specialists, strategists—at a fraction of the cost, with faster time-to-market and lower risk.
How long does a typical Shopify Plus development project take?
Project timelines vary based on complexity. A straightforward migration with minimal customization typically takes 8 to 12 weeks. Custom theme development with moderate integrations runs 12 to 16 weeks. Complex B2B portals with extensive ERP integration, custom apps, and advanced functionality can take 16 to 24 weeks to develop. During the discovery phase, we’ll provide a detailed project plan with milestones and realistic timelines tailored to your specific requirements.
How much does Shopify Plus development cost?
Shopify Plus itself starts at $2,000/month (platform fees). Development costs vary based on scope. A basic migration and theme customization may range from $25K-$50K, while enterprise implementations with custom apps, complex integrations, and advanced functionality typically range from $75K-$250K+. We provide transparent pricing with detailed estimates during the discovery phase, ensuring that there are no hidden costs or surprises.
Do you provide ongoing support after launch?
Absolutely. Our engagement doesn’t end at launch. We offer comprehensive post-launch support, including performance monitoring, security updates, feature enhancements, conversion rate optimization, and strategic consulting. Support packages range from basic monitoring (Bronze tier) to comprehensive ongoing optimization with dedicated account management (Gold tier). Most enterprise clients opt for ongoing partnerships to ensure continuous improvement and growth.
Can you migrate my store from Magento/WooCommerce/BigCommerce to Shopify Plus?
Yes, we’re experts in platform migration. We’ve successfully migrated dozens of stores from Magento (Adobe Commerce), WooCommerce, BigCommerce, and custom platforms to Shopify Plus. Our migration process preserves product data, customer records, order history, blog content, and SEO equity, ensuring a seamless transition. We handle URL mapping with 301 redirects, ensuring zero impact on search rankings. Most migrations complete in 10-16 weeks with minimal downtime.
What integrations can you build for Shopify Plus?
We’ve built hundreds of integrations connecting Shopify Plus to ERP systems (NetSuite, SAP, Microsoft Dynamics), CRM platforms (Salesforce, HubSpot), PIM solutions (Salsify, inriver), marketing automation (Klaviyo, Marketo), fulfillment systems, payment gateways, loyalty programs, and custom APIs. We’re technology-agnostic and can integrate with virtually any system that offers an API or data export capability.
How do you ensure site performance and speed?
Performance is built into our development process, not added afterward. We optimize for Core Web Vitals (LCP, FID, CLS), implement lazy loading for images, minimize JavaScript, utilize Shopify’s CDN, optimize theme code, and conduct performance testing prior to launch. We target 90+ Lighthouse scores and sub-2-second load times. Following the launch, we continuously monitor performance and make adjustments as necessary.
Do you specialize in B2B eCommerce?
Yes, B2B commerce is one of our core specializations. We build custom B2B portals with features like tiered pricing, customer-specific catalogs, part number search, bulk ordering, quote management, approval workflows, and credit terms. Our B2B solutions seamlessly integrate with ERP systems, enabling real-time inventory management, pricing, and order processing. We’ve delivered B2B projects for manufacturers, distributors, and wholesale businesses across multiple industries.
What makes your approach different from other agencies?
Three key differentiators: (1) Platform-agnostic expertise—we’re certified across Shopify Plus, Adobe Commerce, Shopware, and BigCommerce, so we recommend the right solution for your business, not just what we know. (2) Strategic partnership—we don’t just build, we consult on business strategy, customer experience, and growth planning. (3) Enterprise depth—our team has delivered projects for Fortune 500 brands, giving us experience with complex requirements that most agencies never encounter.
Expert Insights
Stay ahead of industry trends with thought leadership from our Shopify Plus development experts:
-
Shopify eCommerce Agencies: Comparing the Best for Complex Builds
A comprehensive guide to evaluating Shopify agencies for enterprise projects, including key questions to ask and red flags to avoid.
-
The Dawn of Agentic Commerce: How OpenAI and Shopify Are Reshaping eCommerce
Exploring AI-powered conversational commerce and what it means for Shopify Plus merchants in 2025 and beyond.
-
B2B eCommerce Platform Wars: Adobe Commerce vs. Shopware in 2025
Platform comparison insights that help enterprise buyers make informed decisions about their eCommerce technology stack.
Ready to Transform Your eCommerce Platform?
Don’t let platform limitations hold your business back. Whether you’re ready to migrate to Shopify Plus, need to scale your existing store, or want to explore custom development possibilities, Atwix is your partner for enterprise eCommerce success.
With over 15 years of experience, more than 300 certifications, and a portfolio of enterprise success stories, we deliver Shopify Plus development services that drive measurable business results.
Get started with a free consultation where we’ll:
- Audit your current eCommerce setup
- Identify growth opportunities and technical gaps
- Provide a strategic roadmap tailored to your goals
- Deliver a transparent cost estimate with no surprises