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Network Security Engineer III

Invictus International
United States, Colorado, Colorado Springs
8610 Explorer Drive (Show on map)
Apr 30, 2026

Title: Network Security Engineer III

Location: Colorado Springs, CO

Clearance: TS/SCI with the ability to obtain and maintain a CI polygraph

Job Details:



  • Responsible for the deployment, configuration, and operational support of enterprise firewall infrastructure
  • Execute enterprise networking fundamentals, including routing, switching, and end-to-end traffic flow
  • Demonstrate LAN and WAN troubleshooting experience
  • Hands on experience with eBGP, VLANs, and Palo Alto APP-ID
  • Design, implement, and maintain NGFW security policies, including both physical and virtual firewalls
  • Perform IDS/IPS configuration, tuning, and alert triage
  • Read, produce, and maintain accurate network diagrams (Visio or equivalent)
  • Conduct network security monitoring including traffic analysis and anomaly detection
  • Troubleshoot routing, VLAN, and policy related issues impacting data flow across the enterprise
  • Perform packet captures and traffic analysis to isolate and resolve complex connectivity issues
  • Monitor and refine Splunk dashboards and alerts in support of firewall operations and incident investigation desired
  • Collaborate with the network, SOC, and engineering teams during incidents and routine operations
  • Document configurations, runbooks, and post incident findings



Requirements:



  • Bachelor's degree from an accredited institute in a technical discipline; an additional four (4) years of experience may be substituted in lieu of a degree
  • Minimum six (6) years of relevant experience in addition to education level
  • Experience working in a DoD or Intelligence Community Environment desired
  • Must possess current DoD 8570 IAT II and CCNP (or equivalent) certifications
  • Current active TS/SCI clearance, with the ability to obtain and maintain a CI polygraph



Equal Opportunity Employer/Veteran/Disabled

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