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Matt Zimmerman is a technologist and free software and open source developer. Zimmerman worked for Canonical Ltd. as the technical leader of the Ubuntu project, chairman of the Ubuntu technical board and CTO of the project. At Canonical, Zimmerman coordinated technological decisions related to the development and release of Ubuntu. In May 2011 he left Canonical1 to join Singly,2 and in June 2012 he announced that he was going to be employed by Heroku.3
Zimmerman is a well known developer in the Debian project, having occupied a role on the group's security team and maintained the Advanced Packaging Tool (APT).