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# Senior IT Specialist - Network Infrastructure

- **Company:** Zachary Piper
- **Location:** Arlington, VA, United States
- **Experience:** Expert
- **Salary:** $100,006.0 - $109,990.0
- **Contract:** Permanent contract
- **Skills:** Border Gateway Protocol, Cisco Routers, Complex Networks, Computer Networks, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), Enhanced Interior Gateway Routing Protocol, Networking Hardware, Internet Protocol, IPv6, Virtual Private Networks (VPN), Network Troubleshooting, Network Architecture, Routing, Performance Tuning, Systems Integration, TCP/IP, Virtual Local Area Networks, Information Technology, Network Support
- **Published:** August 29, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9127619/senior-it-specialist-network-infrastructure

## About the Role

* 7-10+ years of IT experience with a strong focus on enterprise networking.
 * Hands-on experience troubleshooting Cisco routers, switches, and network infrastructure.
 * Strong knowledge of TCP/IP, IPv6, DNS, DHCP, VLANs, VPNs, NAT, EIGRP, and BGP.
 * Experience providing Tier 2/3 network troubleshooting and operational support.
 * CCNA required; CCNP highly preferred.
 * IAT Level III certification required.
 * Active Top Secret clearance required.
 * Experience supporting DoD, Marine Corps, Navy, or other federal network environments preferred.

## Description

Zachary Piper Solutions is seeking a Senior IT Specialist - Network to support a long-term Department of Defense program providing IT and cybersecurity services to the Marine Corps Enterprise Network (MCEN). This individual will provide Tier 2/3 network support for mission-critical Marine Corps infrastructure. This position is onsite at the Pentagon and requires an active Top Secret clearance., * Provide Tier 2/3 troubleshooting and operational support for enterprise network infrastructure.

 * Configure, maintain, and troubleshoot Cisco routers, switches, and networking equipment.
 * Troubleshoot IP networking, DNS, DHCP, VLANs, VPNs, NAT, and routing protocols.
 * Support network upgrades, installations, integrations, and performance optimization.
 * Diagnose complex network connectivity and performance issues and drive incidents through resolution.
 * Support enterprise network availability while coordinating with cybersecurity and infrastructure teams.


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