Cisco Call Manager Engineer, TS/SCI

📋 Description

• • The Cisco Call Manager Engineer role at CDW Corporation is a critical position responsible for designing, implementing, and maintaining secure, high-performance voice and unified communications infrastructure for federal and government clients in the Washington, D.C. area. This role directly supports mission-critical operations by ensuring reliable, secure, and scalable Cisco Unified Communications Manager (UCM) environments that enable seamless communication across agencies and partners.
• • Day-to-day responsibilities include designing and implementing the physical and logical architecture of LANs, WANs, and VoIP networks; deploying, troubleshooting, monitoring, and optimizing IP telephony, voice, video, and mobility solutions; leading software upgrades and patches for Cisco Unified Communications products; providing expert technical assistance to network analysts and professionals on Cisco software, IP phones, and voicemail systems; coordinating with IT teams, business stakeholders, and vendors to ensure uninterrupted network operations; developing and executing session management strategies to improve call quality and system efficiency; performing remote monitoring and management of enterprise IP telephony environments; and delivering end-user support for Cisco VoIP and UCCE environments, including independent resolution of customer issues and handling of internal escalations.
• • CDW is a Fortune 500 technology solutions provider serving business, government, education, and healthcare clients across North America and the UK. The company fosters a culture of trust, connection, and commitment where coworkers collaborate to deliver innovative IT solutions. This role sits within CDW’s federal technology practice, supporting high-security government contracts requiring TS/SCI clearance, and offers exposure to cutting-edge unified communications technologies in a mission-driven environment.
• • In this role, the engineer will deepen expertise in Cisco UC architecture, gain hands-on experience with multi-site VoIP deployments in secure government environments, and develop advanced skills in call flow analysis, CDR troubleshooting, and session optimization. The position also offers opportunities to engage with CDW’s AI-fluent initiative, learning how to responsibly integrate AI tools to enhance monitoring, predictive maintenance, and support workflows—without replacing human judgment—thereby building future-ready skills in intelligent infrastructure operations.