As an infrastructure engineer and front-end engineer, I have been in charge of server design, construction, operation and maintenance, and web system development centered on the system infrastructure of government offices. As a technical educator, I am in charge of cloud technology and OSS (Linux, Docker, Kubernetes) classes at vocational schools, and am also in charge of private training instructors for companies. As an advocate/evangelist, I have been on stage at meetups and conferences. Currently working as a solution engineer with a focus on cloud native technology. I also actively participate in the management of communities related to cloud native technology. Publishing: Book "Basics of Docker container development and environment construction"(Impress) Co-authored "Complete Guide to Utilizing Kubernetes with Rancher" (Impress), "Container-Based Orchestration Docker/Kubernetes System Infrastructure for the Cloud Age"(Shoeisha)