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# TS/SCI Cisco Call Manager/Network Engineer

- **Company:** Insight Global
- **Location:** Largo, FL, United States
- **Experience:** Expert
- **Contract:** Internship / Graduate position
- **Skills:** Microsoft Windows, VoIP, Unix, Cisco Unified Communications Manager, System Configuration, Dynamic Host Configuration Protocol, Linux, IP Addressing, OSI Models, Session Initiation Protocols, Network Architecture, TCP/IP, Virtual Local Area Networks, Network Routers, Juniper, Cisco
- **Published:** October 26, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3467512324&tx=ZT1918TYV&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

Active TS/SCI (Top Secret clearance with SCI eligibility) Experience configuring, administering, and maintaining Cisco Unified Communications Manager (CUCM) and Unity Connection to support enterprise and/or classified environments. Juniper SRX, EX series routers and switches Experience with multi-platforms like Windows, UNIX, LINUX Deep understanding of network engineering fundamentals, including: OSI layers, IP addressing, sub-netting, TCP/IP stack, VLANs, DHCP, etc. Bachelor's degree + 5 years of professional experience (excluding internships), OR an Advanced degree in a related field + 3 years experience Must be able to attain and maintain a DoD 8570 IAT Level II certification (Security+ or CISSP preferred) CISSP cert Master's degree

## Description

A Client of Insight Global is seeking a Senior Network Engineer to manage Cisco Unified Communications Manager for their team in Largo, FL. This position is responsible for maintaining and supporting secure enterprise network, voice, and collaboration infrastructure in a 100% onsite environment. Day to day, the engineer will configure and troubleshoot Cisco CUCM, Unity Connection, VoIP, voice gateways, SIP trunks, and network infrastructure, while handling Tier III support and system upgrades. They will also maintain DoD security compliance, remediate vulnerabilities, support modernization and migration efforts, document system changes, analyze performance issues, and partner with cybersecurity and infrastructure teams to ensure reliable and secure communications systems.