Yukihiro Matsumoto

Yukihiro Matsumoto まつもと ゆきひろ
松本 行弘
Yukihiro Matsumoto at the ACM International Collegiate Programming Contest in Tokyo, 14 March 2007
Born	(1965-04-14) 14 April 1965 (age 59) Osaka Prefecture, Japan
Other names	Matz
Alma mater	University of Tsukuba (BS) Shimane University (PhD candidate)
Occupation(s)	Computer scientist, programmer, author
Known for	Ruby
Children	4

Yukihiro Matsumoto (まつもとゆきひろ, Matsumoto Yukihiro, born 14 April 1965), also known as Matz, is a Japanese computer scientist and software programmer best known as the chief designer of the Ruby programming language and its original reference implementation, Matz's Ruby Interpreter (MRI). His demeanor has brought about a motto in the Ruby community: "Matz is nice and so we are nice," commonly abbreviated as MINASWAN.

As of 2011^[update], Matsumoto is the Chief Architect of Ruby at Heroku, an online cloud platform-as-a-service in San Francisco. He is a fellow of the Rakuten Institute of Technology, a research and development organization within Rakuten Group, Inc. He was appointed to the role of technical advisor for VASILY, Inc. starting in June 2014.^[1]