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Jeff Zeilmann is a seasoned Senior Systems Administrator with over 30 years of experience in UNIX and Windows environments. Currently at Client Services since 2005, Jeff specializes in Microsoft Exchange 2016 DAG administration, Windows Server and Active Directory maintenance, data backup and recovery, and Cisco Cloud Email Security management. Previous roles include Systems Administrator/Knowledge Engineer at VTech, IT Project Manager at Datanomics, and technical support positions at IBM, Lucent Technologies, and AT&T. Jeff's expertise encompasses system administration, disaster recovery, and user support, along with a strong background in technical documentation and client/server operations. Education includes an Associate’s Degree in Communication and Media Studies from St. Louis Community College and extensive coursework at Maryville University of Saint Louis and University of Missouri-Saint Louis.