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# VoIP

- **Company:** LTD Global
- **Location:** Scott Air Force Base, IL, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** VoIP, Complex Networks, Cyber Security, Computer Networks, Microsoft Visio, Network Configuration and Change Management, Network Planning and Design, Routing, Network Virtualization, Cisco, Vmware
- **Published:** July 18, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9039818/voip

## About the Role

* Must be a US Citizen and pass a background check.
 * Maintain applicable security clearances at the level required by the client for the position., * Bachelor's Degree (BA or BS)
 * Must have an active DoD IAT Level II certification (Security+ CE), prior to start.
 * Cisco Certified Network Professional Collaboration (CCNPC) or equivalent or higher certification

Technical Experience

 * 5+ years as a Cisco Voice Engineer
 * SME on Cisco UCM, SBCs, Call Manager Express, voice gateways
 * Expertise in modern and legacy voice protocols
 * Manage multi-site dial plans and call routing
 * Ability to understand network traffic flow in complex networks
 * Network diagraming and documentation (Visio)
 * Writes well formatted technical instructions
 * VMWare Network Virtualization
 * Routing/Switching
 * Great interpersonal skills
 * Ability to teach others on complex topics

## Description

GES is seeking a Senior Voice Engineer to identify and resolve performance issues and be responsible for all troubleshooting, repairing/replacing, configuring, monitoring and upgrading the unclassified voice architecture. This position is on-site and mission essential., * Responsible for implementation and technical support of Cisco Unified Communications related technologies

 * Assist Tier-II and Tier-III engineers with ticket escalation, acting as program voice subject matter expert (SME)
 * Conducts technical assessments and develops solutions to complex problems
 * Tests emerging technologies within the system's integration lab (SIL) environment
 * Uses vendor tooling to diagnose root causes of voice related issues
 * Write technical documentation on voice systems and projects
 * Acts autonomously by improving responsible systems and making progress toward program initiatives.
 * Coordinates with external voice SMEs, provides guidance on network configuration and design constraints
 * Upgrades to all supported VoIP / UC systems to meet cybersecurity requirements
 * Review work/installation progress for accuracy, adherence to network design, and conformance to telecommunications standards
 * Perform other Voice technology-related duties as assigned


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