From Legacy to Cloud-Native: How a Global Retailer Achieved 99.99% Uptime

The journey of a global retail enterprise from traditional on-premises infrastructure to cloud-native architecture illustrates the transformative potential of strategic cloud migration in the retail sector. Beginning with a pragmatic lift-and-shift approach that established foundational capabilities while maintaining business continuity, the organization progressively embraced containerization, microservices architecture, and managed services that dramatically enhanced deployment agility and operational resilience. This evolution extended beyond technical architecture to encompass fundamental changes in organizational structure, development practices, and business operations. The migration delivered substantial improvements in deployment frequency, system reliability, and market responsiveness while achieving near-perfect uptime during critical shopping periods. The retailer's experience offers valuable insights into migration strategy selection, technical debt management, and organizational transformation that can guide other enterprises facing similar challenges with legacy infrastructure in an increasingly digital marketplace.