I'm a System Admin in both Open Source & M$ worlds.
In past years I worked for a Microsoft Certified Partner, programming in C# & ASP.NET for 4 years, and administering several Windows Server 2003 servers.
In 2008 I started working for University Of Macerata and from this moment on I am giving more attention to Open Source.
Our main project now is the Intelligent Learning Environment (ILE) based on OLAT and OpenMeetings.
I'm now focusing on Linux (especially SUSE Enterprise & Ubuntu) admin.