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.