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Network Engineer with Security Clearance
Cornerstone DefenseMcLean, VA🇺🇸United StatesPosted 15 Jul 2026
Quick Overview
Work Type
Hybrid
Level
Mid Senior
Job Description
Network Engineer, Senior McLean, VA Required: - 3-5 years of HAND-ON network engineering experience in customer environment - Hands-on Cisco firewall experience (ASA/Firepower 5510, 5515X, FP4100's, etc...) - Hands-on Cisco Catalyst switch experience (Nexus switch experience would be a HUGE plus) - CCNP-level knowledge of Cisco networking (No requirement for certification, but understanding at this level is required) - Familiarity with cabling types/standards (i.e., Single Mode vs. Multi Mode, LC connector vs. SC connector, Cat5/6/7, etc...) - Good understanding of network link virtualization technologies (i.e., Ether-channel/Port-channel, Nexus virtual port-channels (vpcs)) - Willingness to perform layer 1 tasks as needed (pul ling cable, racking/stacking, etc...) - Strong troubleshooting skills - Strong project management experience (i.e., ability to manage projects through their full lifecycle in order to meet deadlines) - Ability to use MS Visio to produce network diagrams - Must be able to survive and thrive in a non-enterprise, fast paced environment - Ability to create and present presentations for Engineering Review Boards and other ad-hoc technical briefings as necessary Desirable: - Understanding of how mission enclaves communicate with Enterprise networks - Familiarity with the Enterprise ticketing system - Familiarity with Cisco Firewall Management Center to manage Firepower firewall - Experience with Cisco Nexus Ethernet switching platforms (Nexus 5500, 5600, 7700, and 9500) - Experience with Cisco MDS Fibre Channel switching platforms (MDS 9000) - Familiarity with Storage Area Networking (SAN) and Fibre Channel protocols and standards - Familiarity with Linux operating system - Familiarity with SolarWinds network management/monitoring tool - Familiarity with virtual appliances (switches, firewalls, etc...) - Familiarity with JIRA - Experience working in a 'mission-like' environment (outside of Enterprise comms) - AWS/Cloud familiarity
Skills
AWS
Jira
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