Five (5) years or more of demonstrated experience in one or more of the following engineering activities:    Utilizing multiple OS's including Windows, Linux, and OSX Using multiple Hypervisors including HyperV, ESX, and VirtualBox Using Windows Management including Active Directory, SCOM, and VMM Implementing Enterprise Backup Solutions such as Microsoft DPM, and ArcServe Backup Suite Designing, engineering, implementing, and maintaining COTSGOTS applications