Experience

freee.k.k.

• Japan
• IT Services and IT Consulting
• 200 - 300 Employee

• PSIRT (Security Engineer)

  • Jun 2020 - Present



Origami

• Site Reliability Engineer

  • Sep 2019 - Feb 2020



NHN JAPAN

• Japan
• Information Technology & Services
• 1 - 100 Employee

• • Jun 2018 - Aug 2019

  Because I had not experienced large-scale service operation, I wanted to experience, I was transferred to Infrastructure operation team. Currentry, I am working on automating maintenance and others including troubleshooting.

• • Apr 2018 - Jun 2018

  (Transfer from NHN Techorus.) I was mainly in charge of troubleshooting for OpenStack Networking. Investigated the cause and documented a solution plan. And also work with the Planning dept to investigate and report on feasibility.



NHN Techchorus

• 1 - 100 Employee

• • Dec 2016 - Apr 2018

  I was in charge of developing RESTful API server and Batch system using OpenStack. I was Software Developer as Infrastructure Developer.

• • Aug 2017 - Nov 2017

  After the service release, I was concurrently serving as Architect team for improving the development process.

• • Sep 2016 - Dec 2016

  Feature survey for building new public cloud service. Research keystone federated identity, and created keystone identity driver for internal authentication system.



ICZ Co., Ltd.

• Software Development

• • Jul 2014 - Sep 2016

  Research Multi-tenancy Bare Metal Cloud at NTT Software Innovation Center.

• • Apr 2015 - Aug 2016

  Provided technical support for building OpenStack Ironic PoC environment.

• • Jan 2014 - Jun 2014

• • Jul 2013 - Mar 2014

• • Apr 2013 - Jun 2013



(Temporary worker)

• 日本 東京都

• Network Operator in NTT Group

  • May 2010 - Mar 2013

  4 times awarded from company, evaluated in the following points: (1) Improve work flow, and construction completed in a short period. (2) As a result of above, number of constructed lines increased by 5.6 times from the previous year. (3) Trouble shooting A. (4) Trouble shooting B. For trouble shooting, I utilized the development experience such as setting confirmation work of NW equipment using my own tool. 4 times awarded from company, evaluated in the following points: (1) Improve work flow, and construction completed in a short period. (2) As a result of above, number of constructed lines increased by 5.6 times from the previous year. (3) Trouble shooting A. (4) Trouble shooting B. For trouble shooting, I utilized the development experience such as setting confirmation work of NW equipment using my own tool.



M-win soft Inc. (旧プロスパーク株式会社)

• 日本 東京都

• Software Developer

  • Apr 2008 - Jun 2009

  Used Java and C #. Created a tool for sales dept in Python (Zope / Plone). Used Java and C #. Created a tool for sales dept in Python (Zope / Plone).