Mission-Critical Enterprise Voice Engineer (TS/SCI)

Piper Companies; Shiloh (IL); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k)

Job summary

Piper Companies is seeking an Enterprise Voice Engineer/UC & Collaboration Engineer to support a government-focused technology environment at Scott Air Force Base, IL. The role requires hands-on experience with IP voice systems, network infrastructure, and highly available voice services.

You will work with CUCM, Cisco Unity, CUBE, Oracle SBC, Avaya Aura; must hold TS/SCI clearance and DoD 8570 Level II certification.

Qualifications

• TS/SCI clearance required.
• DoD 8570 IAT Level II certification (e.g., Security+ CE or equivalent).
• Hands‑on experience with enterprise voice platforms such as CUCM, Unity, CUBE, Oracle SBC, or Avaya Aura.
• Strong expertise in SIP signaling, call flows, and IP telephony systems.
• Experience troubleshooting complex routing, switching, security, and voice infrastructure issues.
• Strong understanding of WAN principles and enterprise networking concepts.

Responsibilities

• Perform engineering and sustainment activities for a large-scale IP voice and video communications infrastructure.
• Manage, configure, and troubleshoot voice, video, and data network systems to ensure high availability and performance.
• Execute system maintenance, capacity planning, and configuration change management activities.
• Configure and manage call routing components including calling search spaces, route plans, route partitions, route lists, and device profiles.
• Configure and support Cisco or Juniper routing and switching devices.
• Support distributed firewall infrastructure and ensure secure voice communications.
• Develop and maintain technical documentation, diagrams, and operational procedures.
• Analyze SIP signaling, call flows, and resolve complex communication issues.
• Troubleshoot site registration, signaling, and media-related issues across distributed environments.
• Validate and implement configuration changes in accordance with enterprise standards.
• Perform fault analysis for voice subscribers, call handlers, routing rules, and network configurations.
• Contribute to technical policies, work instructions, and reporting for enterprise voice services.

Skills

SIP signaling

IP telephony

Network troubleshooting

Tools

Cisco CUCM

Cisco Unity

Cisco CUBE

Oracle SBC

Avaya Aura

Job description

Piper Companies is seeking an Enterprise Voice Engineer/UC & Collaboration Engineer to support a government-focused technology environment at Scott Air Force Base, IL. The role requires hands-on experience with IP voice systems, network infrastructure, and highly available voice services.

You will work with CUCM, Cisco Unity, CUBE, Oracle SBC, Avaya Aura; must hold TS/SCI clearance and DoD 8570 Level II certification.