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# Network Engineer

- **Company:** Cornerstone Defense
- **Location:** McLean, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, JIRA, Cloud Computing, Linux, Ethernet, Issue Tracking Systems, Storage Area Network (SAN), Microsoft Visio, Network Diagrams, Network Administration, Cisco Nexus Switches, Virtualization Technology, Computer Networking Systems, Firewalls (Computer Science), Cisco Firewalls, SolarWinds (Software), Firepower, Cisco Switches, Cisco
- **Published:** June 12, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8972528/network-engineer

## About the Role

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 (pulling 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



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