I joined Microsoft in October, 2006.  Now I am a Software Development Engineer in the Configuration Manager Sustaining Engineering team, which mainly focuses on developing hotfixes, service packs and tools for Configuration Manager. I have participated in the development of ConfigMgr 2007 RTM, ConfigMgr 2007 SP1 and ConfigMgr 2007 SP2, and also worked on other projects such as System Center Updates Publisher 4.5 and System Center Updates Publisher 2011.