Diff supported Giant Tiger's significant transformation by completely replacing its end-to-end technology stack and replatforming to Shopify. We implemented middleware solutions alongside a portal for in-store pickup, pick & pack operations, and shipping integration, effectively tackling challenges such as Buy Online, Pickup In Store (BOPIS) and geo-localization. This comprehensive overhaul not only modernized operations but also significantly improved the customer experience, heralding a new era in discount retail.