Enterprise Shopify Plus Development Agency & Migration Experts

In the world of enterprise ecommerce, your platform is only as strong as the team behind it. Mejix is a certified Shopify Plus Partner at the Plus Tier—Shopify's highest level of certification—dedicated to helping high-growth US brands leverage the full power of the Plus platform. From custom theme development to building complex backend automations with Shopify Flow, our New York-based team provides the technical rigor required to sustain an enterprise-grade online presence.

We understand that for enterprise brands, 'good enough' is never an option. You need a partner who can navigate the complexities of international commerce, multi-warehouse fulfillment, and headless architecture with ease. At Mejix, we act as an extension of your engineering team, delivering custom Shopify Plus solutions that are optimized for speed, conversion, and long-term scalability. Whether you are launching a new B2B channel or scaling a global DTC brand, we provide the strategic roadmap and technical execution to ensure your success.

Migration is one of the most critical phases in a brand's growth journey. Transitioning from legacy platforms like Magento or BigCommerce to Shopify Plus requires more than just moving data; it requires a complete re-engineering of your ecommerce ecosystem. As a leading Magento to Shopify migration company, Mejix specializes in preserving your SEO equity, ensuring 100% data integrity for your orders and customers, and re-building complex custom features within the Shopify environment.

Our migration methodology is designed to minimize risk and maximize ROI. We begin with a comprehensive technical audit of your current stack, identifying bottlenecks and opportunities for optimization. We then handle every aspect of the transition, including ERP/CRM integration, custom app development, and front-end performance tuning. By the time your new Shopify Plus store goes live, it will be faster, more secure, and significantly easier for your team to manage than your previous legacy platform.

Beyond the initial launch, Mejix focuses on the continuous optimization and technical evolution of your Shopify Plus store. We are experts in Checkout Extensibility, allowing us to build secure, high-converting checkout experiences that were previously impossible on Shopify. Our team also leads the way in headless commerce, utilizing Shopify Hydrogen to create lightning-fast, custom storefronts that offer unparalleled design flexibility and performance for mobile-first audiences.

Integrations are the heartbeat of an enterprise store. Mejix excels at connecting Shopify Plus to the rest of your business ecosystem, including ERPs, WMS, and CRM platforms. We ensure that your data flows seamlessly between systems, reducing manual work and eliminating errors in inventory and order management. With our deep experience in international setup and B2B commerce, we help you expand your footprint into new markets with localized experiences that drive global growth.