Senior VoIP Engineer

Job Description:

• Own the design, engineering, and lifecycle of enterprise VoIP and unified communications architecture across NIPRNet, SIPRNet, and JWICS enclaves
• Manage CUCM clusters, Unity Connection, IM&P, Expressway/SBCs, voice gateways and trunks, dial plans, E911, softphone/Jabber services, VTC bridges, and collaboration-platform integrations
• Serve as Tier III/IV escalation authority for complex voice and video incidents and PL1/PL2 outages
• Analyze call detail records, traces, SIP/MGCP signaling, and QoS to determine root causes and engineer permanent fixes
• Liaise with Cisco, OEMs, carriers, and DISN/DSN service providers as the Government's technical liaison
• Lead voice and technical site surveys, capacity planning, engineering designs, installation, migration, modernization, and acceptance testing projects
• Author Project Installation Plans, bills of materials, ROMs, and findings reports for Government approval
• Execute changes during Saturday maintenance windows through formal Change Management with rollback plans
• Own STIG/SRG compliance, firmware and patch baselines, ACAS remediation, RMF/ATO evidence, and eMASS documentation
• Provide VoIP availability data for the Customer Support Metrics Dashboard
• Direct coordination with network, security, facilities, and technician teams while managing schedule and technical risk
• Mentor VoIP technicians and support the Customer Communications Support Manager
• Participate in after-hours emergency on-call response

Requirements:

• Bachelor's degree and a minimum of 7 years of related experience; a Master's degree with 3 years of related experience, or an additional 4 years of related experience in lieu of a degree, may be substituted
• Must be a U.S. Citizen
• Must have an Active Top Secret Clearance (favorably adjudicated T5/T5R) to start
• Must be within investigation scope and/or currently enrolled in Continuous Evaluation / Continuous Vetting
• Must possess and maintain a current DoD 8570/8140 IAT Level III baseline certification (e.g., CASP+ CE, CISSP or Associate, CCNP Security, GCED, or GCIH)
• Minimum of 10 years of experience engineering enterprise unified communications (VoIP, VTC, collaboration) infrastructure, including lead or architect-level responsibility
• Expert-level knowledge of Cisco Unified Communications architecture (CUCM, Unity Connection, Expressway, IM&P, gateways, SBCs), dial plan design, and voice/video protocols (SIP, H.323, MGCP, RTP/SRTP)
• Strong understanding of IP networking and Quality of Service implementation within DoW networks (e.g., JWICS, SIPRNet, NIPRNet)
• Proven experience with enterprise video conferencing systems (e.g., Poly, Cisco) and contact center technologies
• Experience leading RMF/ATO activities for communications systems, including STIG compliance, ACAS remediation, POA&Ms, and eMASS documentation
• Experience leading installation, migration, or modernization projects and executing changes through formal Change Management in scheduled maintenance windows
• Ability to participate in after-hours emergency on-call response and Saturday maintenance windows
• Excellent technical writing, briefing, and stakeholder communication skills
• Sitting for long periods
• Standing for long periods
• Ambulate throughout an office
• Ambulate between several buildings
• Stoop, kneel, crouch, or crawl as required
• Repeatedly lift and carry weight up to 30 pounds
• Desired: Cisco CCNP Collaboration or CCIE Collaboration; CISSP or CASP+ CE
• Desired: Experience supporting Department of War or Intelligence Community secure communications, including secure VTC, DISN/DSN, and DMCC-S
• Desired: Experience integrating Cisco UC with Microsoft Teams Phone, Webex, Zoom for Government, or Adobe Connect
• Desired: Experience with Cisco UCCX/Webex Contact Center supporting a high-volume enterprise service desk
• Desired: ITIL 4 Foundation and experience aligning communications operations to ISO/IEC 20000-1
• Desired: Experience with digital twin, lab, or pre-production validation of communications changes
• Desired: PMP or equivalent project management certification

Benefits:

• Salaried, FLSA-exempt position
• Up to 25% travel involved
• Military-friendly employer committed to hiring and supporting active-duty and veteran employees