Unified Communications Engineer Security Clearance

Position: Unified Communications Engineer with Security Clearance
MANTECH is seeking a motivated, career and customer-oriented Unified Communications Engineer to join our team in Chantilly, VA, to support a large
enterprise IT system. Responsibilities include, but are not limited to:
* Resolving Unified Communications user incidents and requests, to include operational voice and video challenges

* Resolve issues with vendor-specific multi-level video teleconferencing systems

* Supports Moves/Adds/Changes according to the program Managed Services requirements.

* Provides weekly report activities to manager

* Supports the enterprise program with the installation of local and/or remote data and voice communications equipment to include but not limited to voice terminals, video conferencing units, concentrators, minicomputers, central processing units, and facsimiles.

* Create and maintain appropriate documentation, including operational instructions

* Work in a team with standardized solutions based on Cisco technology equipment.

Minimum Qualifications:

* Bachelors Degree and at least 5 years of experience with information networks and related network security. Additional 2 years of experience may be substituted in lieu of degree.

* Must meet DoD 8570 IAT II (e.g. Security+)

* DoD 8570 computing environment certification within 6 months of hire. Cisco CCNA Voice or equivalent certification.

* Experience with Cisco VTC codes, Cisco VoIP endpoints, Cisco Unified Call Manager (CUCM) version 11.5 or later, Cisco Meeting Server, Cisco Telepresence Management Server or VQ Conference Manager.

* In-depth understanding of standard voice and collaboration protocols, including SIP, H.323, MGCP, and SCCP.

* Solid understanding of fundamental routing and switching concepts, including VLANs, STP, DHCP, and routing protocols like OSPF, BGP, and EIGRP to support voice infrastructure.

Preferred Qualifications
* Hands-on knowledge of Cisco Expressway-C and Expressway-E equipment to facilitate secure Mobile and Remote Access (MRA) and business-to-business (B2B) collaboration.

* Technical expertise in configuring Quality of Service (QoS) and Class of Service (CoS) to ensure optimal voice and video packet delivery across the network.

* Experience with Solar Winds Voice/Video QoS product a plus

* Experience in VMware ESXi and vSphere administration for hosting, configuring, and maintaining virtualized Cisco UC applications.

* Active Cisco Certified Network Associate (CCNA) certification is highly preferred, demonstrating a strong grasp of foundational networking and collaboration principles. Security Clearance Requirements
* Must have a current / active Top Secret / SCI Clearance and be willing and able to obtain a polygraph.

Physical Requirements:

* Sedentary work