Cisco Systems is using MongoDB to modernize its e-commerce platform, aiming to improve customer experience by increasing response times and ensuring continuous availability. The company's e-commerce solution handles the online configuration, pricing, and purchasing of all Cisco products and services globally, serving 170,000 unique users across various channels. Dharmesh Panchmatia, Director of e-commerce at Cisco Systems, discussed how his team used MongoDB to transform a mission-critical application, achieving strong consistency with partition tolerance, secondary indexes, and ease of development. The transformation was successful, with no issues encountered since launch, and has improved query latency by 10x, allowing for faster page rendering and enhanced user experience.