To unify Stadium’s extensive product offerings, I designed the Mega Shop—a responsive ecommerce catalog combining their swag catalog with their broader marketplace of over 20,000 items. Spanning diverse categories like swag, customizable merchandise, food, beverages, experiences, luxury goods, and wellness, this platform had to support shoppers in over 180 countries while adhering to engineering constraints. I tackled this challenge by designing an intuitive browsing and filtering experience, ensuring scalability, accessibility, and a seamless purchasing flow. Through close collaboration with engineers, I optimized the design to accommodate a vast inventory while maintaining a high-quality, user-friendly experience.