Ruby Summer of Code

Ujihisa Tatsuhiro

Vancouver, Canada


Mentor, Project #3, 4

GitHub: ujihisa

Twitter: @ujm



Bio: Ujihisa Tatsuhiro is a RubySpec committer. He is a native Japanese speaker who is also fluent in English. He is a VIM user, Termtter committer, and is interested in LLVM. In 2009 he spoke at RubyConf.

Presented by



  • Engine Yard Rails Hosting
  • Ruby Central
  • Ruby on Rails Core Team

Full Project Sponsors


  • 37signals
  • Phusion
  • Pivotal Labs
  • New Relic
  • O'Reilly
  • Entryway
  • Heroku
  • Hashrocket
  • Shopify
  • VMware
  • Thoughtbot
  • Yammer

Half Project Sponsors


  • entp
  • The Frontier Group
  • Intridea
  • Braintree
  • Aptana
  • Harvest
  • Blue Box Group
  • Chargify
  • RubyMine
  • Puppet Labs
  • CUBox
Ruby Summer of Code