Piper Companies is seeking an Enterprise Voice Engineer/UC & Collaboration Engineer to support a government-focused technology and communications environment. The Enterprise Voice Engineer/UC & Collaboration Engineer role is ideal for a skilled engineer with experience in IP voice systems, network infrastructure, and enterprise communications who can help maintain secure, reliable, and highly available voice services in a mission-critical setting. Must be local to Scott Air Force Base, IL Responsibilities of the Enterprise Voice Engineer/UC & Collaboration Engineer: • 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. Qualifications of the Enterprise Voice Engineer/UC & Collaboration Engineer • Active TS/SCI clearance required. • Must possess DoD 8570 IAT Level II certification (e.g., Security+ CE or equivalent). • Hands-on experience with enterprise voice platforms such as Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (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. • Ability to document systems, create diagrams, and support structured operational processes. Compensation for the Enterprise Voice Engineer/UC & Collaboration Engineer includes: • Salary range: $140,000 - $210,000 • Comprehensive benefits package including medical, dental, vision, and 401(k) • Opportunity to support a mission-critical government program • Professional growth within a highly technical and secure environment This job opens for applications on 09/2/2026. Applications for this job will be accepted for at least 30 days from the posting date. #LI-AR2 #LI-ONSITE