ManTech seeks a motivated, career and customer-oriented Enterprise IT Support Officer (EITSO) – Equipment and Telephony Installer to join our team in Herndon, VA. In this role, you support a Dedicated Support Team supporting the Voice Program Recap Office (VPRO) installing network equipment, telephones (VoIP, analog, ISDN), voice media gateways and associated service modules.Responsibilities include, but are not limited to:Performing high quality installations and troubleshooting a variety of te