Daniel Schierbeck has been programming in Ruby since 2005 after completing level 99 in PHP and figuring out there was no prize to win after all.
He studied Computer Science at the University of Copenhagen, where he primarily spent his time trying to avoid writing C++. He got into Concurrent Sequential Processes before it became cool, and wrote a Ruby implementation called Minx for his bachelor thesis. As with all academic code, it is used by no one.
He currently pumps out pull requests for a living at Zendesk, an awesome company that you should most certainly apply for a job at!
Presentations by Daniel Schierbeck: