 JD.com is China's largest online retailer and one of the top five internet companies in China. We have more than 400 million users. Every two weeks, we deliver a new version of the mobile app to our end users. Since it is a very complicated app, we need to ensure flawless delivery. So our goal was to improve the speed and the performance of our end-to-end software delivery by building a continuous delivery pipeline. For that, we use Jenkins. We have experienced great software delivery results, including one platform which supports thousands of application with multiple technical stacks, reduce release cycle from one hour to 10 minutes, and high availability of CD platform. Jenkins is one of the greatest projects in the last 15 years and keeps involving with fast latency. Python Xcode and DSL give us great inspiration while we design our platform. Jenkins is the way to cast the magic of a continuous delivery. Jenkins is a magic. You know everything about the company you want to use to get your job done.