E-commerce website

Grow your online store

Shopify expertise means the ability to design and manage high-performance, scalable e-commerce solutions that are perfectly aligned with a brand’s business goals. The objective: to turn a commercial vision into a smooth, efficient, and technically sound shopping experience on Shopify.

Kevin

Launch, Optimize, Scale: How Cosa Supports You

We help brands at every stage of their growth on Shopify. We step in when a store underperforms or is poorly optimized, or when technical limitations hold back growth (outdated backend, inefficient product management, overly complex processes). We also respond to needs for advanced customization or specific integrations (ERP, CRM, third-party apps), and frequently support migrations from other CMS platforms to Shopify.

End-to-End Shopify Support

At Cosa, we cover the full technical scope of Shopify: creating or redesigning stores, developing custom features, integrating third-party tools, optimizing performance (speed, SEO, accessibility), supporting Shopify Plus, back-office training, ongoing maintenance, and continuous improvements.

Our project managers, UI/UX designers, front-end and back-end Shopify developers, and technical leads work within a proven methodology that includes:

A technical audit and discovery phase to analyze existing systems or define needs;
Precise architecture and planning (tech choices, roadmap, stack);
Front-end and back-end development;
A QA and testing phase with functional and technical validations;
A launch with post-release support.

Our Unique Approach

We don’t just deliver a store that “works”—we think scalability and performance from day one, speaking business as fluently as tech, and staying proactive well beyond launch.
Our Shopify projects are built to last, striking the right balance between custom features, robustness, and speed—whether for ambitious stores, Shopify Plus, or custom app development.

Our expertise is trusted for high-stakes projects where every detail matters: beautiful, fast, and solid—the perfect blend of tech, design, and business.