Vincent Celier is a retired navy officer who spent 20 years in the French Navy, where he learned and practiced Ada starting in 1986. In 1988, he joined CR2A, where among other things he was one of the authors of ExtrA (Extension temps reel in Ada), an ISO Technical Report. In 1994, he moved to Vancouver in Canada, where he worked for 7 years in Ada on the Canadian Automated Air Traffic System. In Vancouver, he discovered Free Software and GNU/Linux. In 2001, he joined AdaCore. He is currently working mostly on the Project Manager and in particular on GPRBuild.