Our client, located in Alexandria, Virginia, is seeking a mid-level Windows Server Administrator to support a Microsoft Windows Server 2003/2008 physical and virtual infrastructure. The Administrator will be responsible for operating, maintaining, and supporting the overall server architecture in a 5,000 user, multi-site environment. Duties include supporting and monitoring the environment on a daily basis, day-to-day server operations, troubleshooting problems, and working assigned infrastructure projects. The administrator maintains responsibility over all Windows servers and the Active Directory domain, including the associated accounts. Qualifications: Understanding of Active Directory and underlying concepts, including GPOs, DNS, FRS, LDAP, Kerberos, sites, forests, trees, domains, trusts, security and resource principals, FSMO roles, etc Understanding of Microsoft Server operating system, services, and concepts Experience working with and administering a large Windows 2003/2008 infrastructure Experience building servers from scratch or image using common imaging tools Experience with 3rd party management tools and backup software (NetBackup, NetIQ AppManager, HP Insight Manager, FrontRange ITSM) Skill in managing one's own time and the time of others based on an established project plan Skill in using logic and reasoning to identify the strengths and weaknesses of solutions, conclusions or approaches to problems Skills in communicating effectively orally and in written format Managed multiple priorities simultaneously Experience with virtualization administration and tools (VMWare) Experience with various Microsoft Server products, including Exchange, SharePoint, SQL, SCCM, etc Experience with the ITSM helpdesk ticketing system or other enterprise-level ticket management system a plus Certifications (i.e., MCSE, MCSA, MCP) a plus Detail oriented and must be able to think independently Applicants must be fully authorized to work in the U.S.