Senior VoIP Engineer
Company: MSM Technology, LLC
Location: Quantico
Posted on: February 15, 2026
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Job Description:
Job Description Job Description Description: Serve as the lead
engineer for the design, implementation, and maintenance of VoIP
and SVoIP infrastructures supporting both classified and
unclassified networks (NIPRNet/SIPRNet). Oversee the administration
of VoIP and DSN systems, including servers, gateways, handsets, and
associated communications hardware. Oversees and manages all
components of the Cisco Unified Communication Manager cluster.
Develop and maintain the Voice over IP architecture design,
including capacity planning, system performance optimization,
redundancy, and failover strategies. Perform troubleshooting,
diagnostics, and resolution of complex voice and video
communication issues to minimize downtime and maintain 99.9%
service availability. Manage voice circuit provisioning and
management, coordinating with service providers, DISA, and the
Quantico G6 to ensure uninterrupted communication across MDIA
networks. Monitors and controls the performance and status of voice
and video resources across multiple enclaves and locations
utilizing software and hardware tools. Performs testing, provision,
operations and emergency responses for voice network operations.
Designs, configures, and installs VoIP hardware / software
replacements and upgrades. Develops and maintains all VoIP
documentation (drawings, cut sheets, configurations, and deployment
plans). Identifies and diagnoses problems and factors affecting
voice services. Provides day-to-day subject matter expert support
for RKB tenant agencies. Troubleshoots voice related issues and
outages, which may occur during non-core hours. Works with vendors
in support of the ITCSU. Ensures all voice applicable STIGs and
vulnerabilities are resolved or mitigated in a timely manner.
Performs preventative maintenance services on all devices within
the VoIP area of responsibility. Maintains a current understanding
of emerging technologies and trends in voice and video services.
Requirements: Bachelor’s degree in information technology, Computer
Science, Telecommunications, or a related discipline; equivalent
experience acceptable. Five (5) or more years of experience
designing, building, and/or maintaining communications systems with
minimum of three (3) years of experience with CISCO Unified
Communications Manager (CUCM) Version 10.5 or newer. Experience
with Cisco Unity, Cisco Presences, Cisco Emergency Responder is
required. Knowledge of Cisco UCCX required. Experience with dynamic
and static IPv4 routing and integrating with an external SIP
providers. Proficient with SIP, SCCP, MGCP, DSN, PSTN, and H.323
systems and devices. Preferred certifications of CCNA Route and
Switch and/or CCNA Collaboration. Must be DoD 8570 certified at the
IAT-II / IAM-II level. Proven experience engineering and managing
Cisco Unified Communications Manager (CUCM), Cisco Unity
Connection, Cisco Voice Gateways (ISR/ASR), and Cisco IP Phones.
Experience supporting VoIP and Secure VoIP (SVoIP) operations
across classified (SIPRNet) and unclassified (NIPRNet) networks.
Strong understanding of network protocols (SIP, RTP, SCCP, QoS,
VLANs) and their impact on voice traffic performance and
reliability. This position requires a fully adjudicated Secret
clearance level at contract start but must be eligible for a Top
Secret (TS)/Sensitive Compartmented Information (SCI).
Keywords: MSM Technology, LLC, Harrisonburg , Senior VoIP Engineer, IT / Software / Systems , Quantico, Virginia
