I am a committer of Apache Arrow, a member of Ruby core team, and a member of Red Data Tools project.

I'm focusing on to make Ruby a programming language that can be used for any tasks of data processing.

I'm working for tools and libraries below:

• Apache Arrow
  • mainly SparseTensor in C++ API, C GLib API, and Red Arrow (Ruby API)
• pycall.rb
• Charty
• enumerable-statistics
• bigdecimal
• Ruby
• etc.

I love coffee so much. I often brew coffee weekend.
Also, I'm a hobbyist photographer. My favorite camera is Leica Q2.