Senior Exchange/Skype Administrator (Office 365 Sustainment Team) with an active Top Secret Clearance and SCI Eligibility to support a very dynamic customer in Washington, DC. Responsibilities/Duties: Planning, implementing, sustaining, administering Office 365, with focused experience with Skype for Business Working with Microsoft Premier Field Engineers (PFEs) to develop and then enable Microsoft Office 365 technical and systems administration functionality Administering Skype for Business (formerly Lync) and other like unified communication applications; Administering Microsoft Lync Federation or products like Acano to enable cross-organization communications; Administering Core Solutions of Microsoft Exchange Server 2013 or Exchange Server 2010 equivalent; Administering Advanced Solutions of Microsoft Exchange Server 2013 or Exchange Server 2010 equivalent; Ability to effectively share technical knowledge between government and contractor personnel. Required Qualifications: Must hold active Top Secret clearance and be SCI eligible Experience with Exchange Management Console, Exchange Admin Console/Exchange Control Panel, and Exchange Management Shell Experience with Microsoft Windows Server, i.e. 2012 r2, 2008 r2, and 2003, including Active Directory; Knowledge and experience using IT Infrastructure monitoring tools, i.e. Microsoft System Center Operations Manager (SCOM), HP Operations Manager and other native tools common to Exchange; Knowledge and experience using Microsoft Active Directory Services, PowerShell, and/or other scripting tools; Knowledge and experience in development, test and configuration management; Minimum of five (5) years of working experience in maintenance and operational support of Exchange, Lync, and Active Directory; Minimum of five (5) years of troubleshooting Exchange and Skype for Business; Possess Technical writing skills Preferred Qualifications: Microsoft Certified Solutions Associate (MCSA) certifications Lync/Skype deployment and sustainment Virtualization Server patching MIMESweeper screening tool EDUCATION & EXPERIENCE: The position requires a bachelor's degree and 5 to 7 years of related experience. PHYSICAL DEMANDS: Normal demands associated with an office environment. Ability to work on computer for long periods, and communicate with individuals by telephone, email and face to face. Some travel may be required.