Enterprise Voice Engineer II

Enterprise Voice Engineer - Scott AFB, IL (TS/SCI)

Zachary Piper Solutions is in search of a highly skilled and motivated Enterprise Voice Engineer to join a mission‑critical program based at Scott AFB, IL . The ideal candidate will have a strong background in IP voice engineering, routing/switching, SIP call flows, and enterprise‑scale telephony systems, and must hold an active TS/SCI clearance .




Responsibilities of the Enterprise Voice Engineer include:

• Perform sustainment, maintenance, and engineering support for a large, complex, and highly resilient IP voice and video communications infrastructure.
• Manage, configure, troubleshoot, and ensure service availability across voice, video, and data networks.
• Conduct system maintenance, support capacity planning, and execute configuration changes with proper documentation.
• Configure calling search spaces, route plans, route partitions, route lists, and device profiles.
• Configure and support Cisco and/or Juniper routing and switching devices .
• Support distributed firewall infrastructure and security‑driven network architectures.
• Provide input toward technical policy development, work instructions, and enterprise reporting.
• Analyze and resolve complex SIP signaling, call‑flow, registration, signaling, and media path issues.
• Validate change requests and ensure accuracy and compliance.
• Perform advanced fault analysis and configuration of voice subscribers, call handlers, routing rules, and network devices.
• Collaborate with engineering, operations, and PMO teams to support high‑visibility requirements across a global enterprise environment.

Qualifications for the Enterprise Voice Engineer include:

• DoD 8570 certification at IAT Level II (Security+ CE or equivalent).
• Experience with one or more enterprise voice platforms, such as Cisco CUCM, Unity, CUBE, Avaya Aura, or Oracle SBC .
• Strong expertise in SIP internetworking , signaling, and call‑flow analysis.
• Demonstrated experience with troubleshooting routing, switching, security, and large‑scale voice implementations.
• Strong Layer 3 networking background ( Juniper experience highly preferred ).
• Ability to obtain and maintain a DoD security clearance (TS/SCI required prior to start).

Compensation for the Enterprise Voice Engineer includes:

Salary Range: Highly competitive, based on experience and clearance level

Comprehensive Benefits: Medical, Dental, Vision, 401(k), PTO, Sick Leave as required by law, and Holidays

Schedule: Monday-Friday daytime schedule with rotating on‑call responsibilities

Work Environment: On‑site at Scott AFB, IL




Keywords: Enterprise Voice Engineer, IP Voice, VoIP, Cisco CUCM, Avaya Aura, Oracle SBC, SIP, SIP Signaling, Call Flows, Juniper, Routing, Switching, Layer 3, BGP, QoS, SRTP, G.711, G.729, IPSec, MPLS, VPN, Firewall Support, Network Engineering, Voice Infrastructure, Telecommunications Engineering, VTC, H.323, VMware, Telecom Backbone, Enterprise Voice Services, DISA Voice Services, TS/SCI, DoD 8570, Security+, Network Troubleshooting, Infrastructure Support, High Availability, SolarWinds, Ribbon, OCOM, JNCIA, CCNA, Defense Communications, Sustainment Engineering, Patch Management, Change Management