Computer programmer who is recognized for having created the Ruby on Rails web development framework. He also created the Instiki wiki, which he wrote using the Ruby on Rails framework.
He built an online gaming news website known as the Daily Rush in 1999.
As an avid race car enthusiast, he participated in the 24 Hours of Le Mans in 2012.
He married Jamie Heinemeier Hansson.
He and Allan McNish both participated in the 2012 24 Hours of Le Mans.