I have total 9 years of SharePoint, Moreover I have worked on all the major versions in SharePoint.I have started my career with Wss 3.0 and I have worked with MOSS 2007 and SharePoint server 2010 and currently I am working with SharePoint 2013 I have worked on all the major elements of sharepoint ie. Basically i have worked on all the things in sharepoint, also i have worked on migration projects I have done migration in Curently i am working on sharepoint 2013 and sharepoint online.