Sr. VoIP Communications Engineer Security Clearance

Position: Sr. VoIP Communications Engineer with Security Clearance
Overview SR. VoIP COMMUNICATIONS ENGINEER (PACMED):
Bowhead seeks a Sr. VoIP Communications Engineer to assist in designing, deploying, and securing advanced unified communications solutions built on a Zulu Call/Comms platform for military medical treatment facilities in the pacific Region. This role will support DHA, and federal health-care environments operating modern SIP-based voice, messaging, and video communications. The ideal candidate has deep SIP/VoIP experience across multi-vendor platforms, strong signaling and troubleshooting expertise, and the ability to support secure deployments in DoD and health-care networks.

Responsibilities VoIP / Unified Communications Engineering
* Design and deploy Zulu Call/Comms UCaaS environments across cloud, IL5-ready datacenters, and on-premises microservice clusters.
* Configure SIP trunks, SBCs, dial plans, IVRs, queues, call recording, voicemail services, and conferencing features.
* Provision and manage SIP endpoints, including Cisco SIP phones, Poly/Polycom, and Yealink.
* Implement call flows, auto-attendants, queueing, callback, and ACD routing logic. E911 / Location Services
* Configure Red Sky/Intrado E911, PIDF-LO, LLDP-MED, and nomadic user location services.
* Validate routing paths and ensure compliance with RAY BAUM'S Act and Kari's Law. VoIP Security & Compliance
* Implement secure signaling/media (TLS/SRTP), SIP authentication, and secure provisioning.
* Support SCAP/DISA STIG checks for VoIP-related workloads and UC infrastructure.
* Coordinate with cybersecurity teams on RMF and ATO technical requirements for voice systems. Networking & Infrastructure
* Work with site network teams to establish VLANs, DHCP, DNS, QoS, PoE, and firewall rules.
* Assist with WAN redundancy, LTE/Starlink failover, and SD-WAN integrations.
* Diagnose SIP/RTP quality issues: jitter, latency, MOS, packet loss, codec negotiation. Troubleshooting & Support
* Lead advanced troubleshooting of SIP signaling, RTP media path, SBC policies, and endpoint registration.
* Provide Tier III support for VoIP, analog gateways, ATAs, SBCs, and softphone applications.
* Collaborate with government technical teams during pilots, testing cycles, and operational validation. Qualifications
* 7+ years designing, deploying, and supporting VoIP/SIP systems
* Strong command of SIP, RTP, SDP, TLS/SRTP and debugging tools (sngrep, Homer, Wireshark)
* Deep hands-on experience with Free SWITCH, Kamailio, or OpenSIPS
* Experience with UCaaS or carrier-grade SIP platforms (Net Sapiens preferred)
* Experience with SBCs such as Ribbon, Audio Codes, Telco Bridges, Oracle, or Sangoma
* Strong understanding of E911, ELIN/ERL, Red Sky/Intrado, and location services
* Proficiency designing dial plans, IVR flows, queue logic, and call routing policies
* Strong documentation and customer-facing communication skills

Preferred Experience
* Experience working with Shore Tel, Cisco CUCM, or similar enterprise telephony platforms
* Experience in DoD/DHA environments
* Understanding of DISA STIGs, SCAP, RMF, or FedRAMP
* Linux experience (Ubuntu, Debian, RHEL)
* Familiarity with microservice deployments (Docker/Podman/Kubernetes) Soft Skills
* Strong analytical and problem-solving skills
* Ability to lead technical discussions with customers and partners
* Comfortable working independently in high-responsibility environments
* Excellent verbal and written communication Physical Demands:
* Must be able to lift up to 20 pounds
* Must be able to stand and walk for prolonged amounts of time
* Must be able to twist, bend and squat periodically SECURITY CLEARANCE REQUIREMENTS:
Must be able to obtain a security clearance at the Public Trust level. US Citizenship is a requirement. #LI-KC1