Cisco Call Manager Engineer at CDW

This role is designed for a senior telecommunications professional with at least 5 years of experience specifically within the Cisco ecosystem. The ideal candidate is a specialist in Cisco Unified Communications Manager (CUCM) who has navigated complex, multi-site enterprise environments and is comfortable handling the architecture, deployment, and troubleshooting of VoIP and video solutions. The most critical aspect of this position is the security requirement; you must hold an **active TS/SCI clearance** to be considered. While the initial job header mentions remote work, the detailed description clarifies that this is a **fully onsite** role in Washington, D.C. This is a high-impact opportunity to support critical infrastructure for a Fortune 500 technology leader, focusing on high-level session management and complex call flow troubleshooting. **You might be a good fit if you...** * Hold an active TS/SCI security clearance (this is non-negotiable). * Are an expert in Cisco proprietary protocols like SCCP and have extensive experience with CUCM/UCCE. * Are comfortable working 100% onsite in Washington D.C. * Have a proven track record of designing and deploying IP telephony for multi-site enterprise environments.