Sr. UC Network Engineer

Piper Companies; Illinois; Hybrid; USD 145,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) plan

PTO

Job summary

Piper Companies seeks a Sr. UC Network Engineer to support a leading government defense organization.

The role focuses on maintaining, optimizing Cisco UC environments and ensuring mission-critical voice and collaboration services; requires active Secret Clearance and onsite presence four days per week at Scott Air Force Base. You will design, implement, and troubleshoot CUCM, coordinate with cross-functional teams, and contribute to secure communications in a DoD context.

Qualifications

• Active Secret Clearance required.
• 7+ years of experience supporting Cisco UC environments.
• CCNP Collaboration or equivalent is preferred.
• Experience in DoD/government environments is a plus.

Responsibilities

• Design, implement, and troubleshoot Cisco UC solutions in an enterprise environment.
• Administer CUCM infrastructure and related voice platforms.
• Monitor performance, availability, and capacity of UC services.
• Perform upgrades, patches, and configuration changes across UC platforms.
• Collaborate with network, security, and infrastructure teams.
• Develop documentation and diagrams; ensure compliance with DoD security requirements.

Skills

Active Secret Clearance

UC Network Engineering

CUCM/Call Manager

VoIP & SIP

Voice networks & QoS

Cross-functional teamwork

CCNP Collaboration (preferred)

Job 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.

Responsibilities of the Sr. UC Network Engineer:

• 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.

Qualifications of the Sr. UC Network Engineer:

• 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.

Compensation for the Sr. UC Network Engineer includes:

• Salary range: $145,000 - $165,000 depending on experience
• Comprehensive benefits package including medical, dental, vision, 401(k), and PTO
• Hybrid schedule with four days onsite at Scott Air Force Base

This job opens for applications on 08/19/2026. Applications for this job will be accepted for at least 30 days from the posting date.