from Hacker News

I first worked at Blue Sky Productions aka Looking Glass Technologies aka Looking Glass Studios, and coded/designed/wrote/composed for some of their early games, most notably Ultima Underworld.

Then I joined Harmonix Music Systems, where I did code and game design on a bunch of music games, including Guitar Hero and Rock Band.

Most recently I did machine learning research in the Algorithmic Systems Group at Analog Garage, a division of Analog Devices.