Junjie (Jack) is the Chief Architect of the Elastic Compute Service at Alibaba Cloud. He has extensive experience with Cloud Computing across IaaS, PaaS and SaaS. His current focus is to make the IaaS controller more intelligent for better compute service availability, performance and cost-efficiency. Previously he led a SaaS platform initiative in Huawei, and served as the Application Runtime architect in IBM Bluemix Cloud platform, building an application-centric experience on the Cloud. Before his Cloud journey, Jack was deeply involved in the Java core platform technologies and the related open source community. He is a member of the Apache Software Foundation.