Hashilus Inc.

January 2019 - Present Unity engineer.

DWANGO Co., Ltd.

April 2013 - December 2018 Back-end web developer.

I’ve been involved in rebuilding a live streaming service, and maintenance it.

The list below is a summary of the work.

  • The existing service had so large code base made of PHP. We rebuilt it by Scala with appling Domain-Driven Design.
  • Existing domain knowledge that is contained by the service was too large to describe by one monolithic application, so we divided the service into many micro services that has a responsibility to describe the knowledge of bounded context.
Aiming Inc.

May 2009 - March 2013 Game and in-house tool developer (Part-time worker).

I’ve been involved in the development of

  • sub system to embed within online games. (Powered by Node.js.)
  • in-house tools to help operation of game services. (A WPF application that made of C#.)


Tokyo University of Technology

Bachelor of Media Science, March 2013

Mainly I studied technologies about 3DCG contents production.


  • Scala
  • Kotlin
  • PHP
  • Python (Only for automation of small chores.)
  • C#
  • C/C++ (Only as a hobby.)
  • Haskell (Only as a hobby.)
  • GLSL (Only as a hobby.)
  • HLSL (Only as a hobby.)
  • OpenCL C (Only as a hobby.)
  • Go (Only as a hobby.)
  • JavaScript (Not good so much.)
  • MySQL
  • Redis
Web framework
  • Play Framework
  • Spring Boot
  • Express
  • Git
  • Unity (Only as a hobby.)
  • OpenGL (Only as a hobby.)
  • XNA (Only as a hobby.)
  • OpenCL (Only as a hobby.)
  • Adobe Media Server
  • V8 JavaScript Engine (Only as a hobby.)
  • Docker
  • Ansible
  • Jenkins