Senior VoIP Engineer
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Job Description
Senior VoIP Engineer architecting secure VoIP and unified communications infrastructure for federal agencies. Leading Cisco platforms, compliance, incident response, and modernization across classified enclaves.
Responsibilities:
- 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
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