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# Sr. UC Network Engineer - 174346 - 174684 - 175583

- **Company:** Zachary Piper
- **Location:** United States
- **Experience:** Expert
- **Salary:** $145,000 - $165,000
- **Contract:** Permanent contract
- **Skills:** VoIP, Cisco Unified Communications Manager, Monitoring of Systems, Network Troubleshooting, Network Architecture, Routing, Integrated Communications Access Packages, SC Clearance, Cisco
- **Published:** October 12, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9231601/sr-uc-network-engineer-174346-174684-175583

## About the Role

* Active Secret Clearance required.

 * 7+ years of experience supporting Cisco Unified Communications environments.

 * Strong hands-on experience with Cisco Unified Communications Manager (CUCM/Call Manager).

 * Experience with Cisco voice, collaboration, and telephony technologies.

 * Knowledge of VoIP, SIP, dial plans, gateways, and voice network troubleshooting.

 * Experience working within enterprise or government environments.

 * Strong understanding of network infrastructure, routing, switching, and security concepts.

 * Excellent communication skills and ability to work effectively with cross-functional teams.

 * Cisco certifications such as CCNP Collaboration or equivalent are preferred.

## Description

Piper Companies is seeking a Sr. UC Network Engineer to support a leading government services organization in the defense industry. The Sr. UC Network Engineer will serve as a key technical resource responsible for maintaining, optimizing, and enhancing Cisco Unified Communications environments supporting mission-critical operations. This position requires an active Secret Clearance and is onsite four days per week at Scott Air Force Base., * Design, implement, maintain, and troubleshoot Cisco Unified Communications (UC) solutions in an enterprise environment.

 * Administer and support Cisco Unified Communications Manager (CUCM/Call Manager) infrastructure.

 * Monitor system performance, availability, and capacity to ensure reliable voice and collaboration services.

 * Perform upgrades, patches, and configuration changes across UC platforms.

 * Collaborate with network, security, and infrastructure teams to support integrated communications solutions.

 * Troubleshoot complex voice, video, and collaboration issues while ensuring minimal service disruption.

 * Develop and maintain technical documentation, operational procedures, and system diagrams.

 * Support compliance and security requirements within a Department of Defense environment.