Toshikazu Ichikawa is a Senior Manager of Cloud Services, NTT Communications Corporation in Tokyo, Japan. He manages the team in charge of virtual server service development and operation, which consists of ECL2.0 public cloud using OpenStack. Prior to this job, he was a Senior Research Engineer for NTT Software Innovation Center of NTT Corporation in Tokyo, Japan. He led a OpenStack development team in charge of community upstream activities to develop the cloud infrastructure system using OpenStack for NTT Group companies for two years. He was a Sr. Manager of Japan Business Development and Architecture for Verio Inc., which is a subsidiary of NTT America, in Utah, U.S.A.. He worked for the design and development of public cloud service named cloudn and the business development of managed hosting services from 2011 to 2014. He also has a research engineer backgroud at NTT Sharing Platform Laboratories of NTT Corporation. He worked for the research and development of the system including cloud computing and distributed storage system for 10 years.