Career Profile

Infrastructure team lead for large production environment on AWS with +1 year of experience. Proposed and architect a Kubernetes platform, and developed and operated the platform in production environment. Lately I provide architectual advices to Red Hat associates and customers based on the experience. Providing tech talks related to Container and DevOps in conferences.

Experiences

Senior Technical Support Engineer for OpenShift and Kubernetes

2019 - Present
Red Hat

  • Provided technical supports to Red Hat customers about OpenShift and Kubernetes
  • Problem solving to the customer’s system related to OpenShift, Kubernetes and CI/CD pipelines.
  • Provided technical articles about OpenShift, Containers, Kubernetes.
  • Talked about OpenShift / Kubernetes in conferences.

Solution Architect for DevOps and Container

2017 - 2019
Red Hat

Infrastructure Engineer Lead

2016 - 2017
DWANGO Co.,Ltd.

  • Developed and managed 4 project’s infrastructures using AWS / Terraform / Ansible / Capistrano / Itamae.
  • Proposed and developed infrastructure using Kubernetes on AWS for existing non-containerized microservice application.
  • Directed in-house study meeting of IaC(Infrastructure as Code).
  • Directed scrum-based team/process management.
  • Achieved 30% cost reduction and network stability by introducing AWS DirectConnect and reviewing instances and cache size.

Application Engineer

2014 - 2016
DWANGO Co.,Ltd.

  • Restructured existing project using some new frontend technology (webpack, RxJS, ReactJS) for building bi-directional websocket application cleanly.
  • Introduced Spring framework to existing project for Domain-Driven Design.

Freelancer

2009 - 2014
LITERAL-ICE

Developed 10 over projects from requirement definition to test and maintenance using Groovy, Java, Tomcat, Typescript, etc.

Software Engineer

2006 - 2009
Hitachi Systems & Services, Ltd.

Designed and implemented UX of a sub-system for bank clerk’s work.

Projects

My acitive commitment or contribution OSS projects

Terraform OpenShift Container Platform Module - It can create OpenShift cluster on AWS easily. I alway use it for providing PoC of OpenShift in customers.
minishift addon for istio - It can install Istio on minishift(local openshift) in ‘Operator’ way
openshift-inventory-utils - It generates a ansible inventory file for openshift from AWS tags.

Skills & Proficiency

OpenShift

Kubernetes

AWS

DevOps / EventStorming / Workshop

Java / Spring / Jakarta EE

Ruby / Ruby on Rails