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Network Engineer with Security Clearance

Cornerstone DefenseMcLean, VA🇺🇸United StatesPosted 9 Sept 2026

Why This Role Stands Out

Leverage your expertise as a Network Engineer with a strong security clearance to contribute to critical defense initiatives, with a competitive salary range of $160-235k. This on-site role offers significant opportunities for technical growth and impact within a reputable organization. If you possess extensive Cisco experience and a background in intelligence community networking, you'll thrive in this challenging and rewarding position. Apply today to advance your career!

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
McLean, VA, United States
Posted
Yesterday
AWSTCP/IPJira

Job Description

Network Engineer McLean, VA Salary Range: $160-235k The on-site Network Engineer shall perform the following minimum duties:

  • Assisting the System Administrators as assigned by the Lead System Administrator.
  • Assisting the Lead Network Engineer in developing and implementing IT/network plans
  • Managing network operations using simple network management protocol (SNMP) network management tools.
  • Diagnosing and troubleshooting network problems with network protocol capture/decode analyzers.
  • Planning and building network from open system interconnect (OSI) Layer 1 through Layer 3.
  • Managing TCP/IP internetworking connectivity to include addressing and subnetting.
  • Monitoring network as defined in the network monitoring plan.
  • Installing, configuring, updating and documenting the physical cable plant.
  • Installing, configuring and managing networking hardware (switches, bridges, hubs, concentrators, transceivers).
  • Installing, configuring and managing network security (firewalls, IP blocking).
  • Configuring and managing virtual private networks (VPNs) Required Skills:
  • Bachelor's degree in computer science, information systems, engineering, mathematics or four (4) years equivalent experience as network engineer or network technician.
  • Six (6) years' experience with Cisco Catalyst switches and other Cisco network hardware.
  • Seven (7) year intelligence community experience as a network engineer or network administrator.

Desired Skills

  • 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 and other ad-hoc technical briefings as necessary
  • Understanding of how mission enclaves communicate with Enterprise networks
  • 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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