Amazon, an ecommerce company, faced challenges due to inefficient infrastructure and competition. They found solutions through Cloud Computing (IaaS) and Big Data analysis. The Cloud Computing infrastructure, known as Amazon Web Services, provided services such as Infrastructure as Service, Platform as Service, and Software as Service, making Amazon the number one cloud service provider. Big Data was used for predictive analytics, providing recommendations to customers, increasing business, and improving customer satisfaction. Amazon's use of Cloud Computing and Big Data led to increased profits and made it a ecommerce giant.