Demo

Senior Firewall Engineer with Security Clearance

Crimson Phoenix
Springfield, VA Full Time
POSTED ON 5/2/2026
AVAILABLE BEFORE 5/31/2026
Senior Firewall Engineer What You Will Be Doing: As a member of the Network Security Services team, you will work with both corporate and customer leadership to research, analyze, and implement enterprise-wide network security solutions/capabilities/enhancements to support customer business/mission goals and objectives.

  • Assist with design, analysis, testing, and implementation of state-of-the-art secure network architectures.
  • Conduct risk assessment and provide design recommendations.
  • Manage WAN, LAN, CAN, and remote network security as well as incident and problem management.
  • Oversee security infrastructure sustainment, maintenance, and advanced configuration. (firewalls, F5 load balancers, web gateways, mail gateways, IDS, and management tools).
  • Oversee the reporting, documentation, and investigation of all security-related incidents; lead the development and implementation of corrective measures.
  • Develop and execute standard operating procedures (SOPs) for security tools.
  • Evaluate and report on new network Security technologies to enhance the capabilities of the network.
  • Act as liaison to the contract and customer management, and government Designated Approving Authority (DAA) regarding network security status, policies, and procedures. Must Have:
  • TS/SCI (current)
  • Must be able to successfully pass/maintain a U.S. Government Polygraph (post-hire)
  • BA/BS Degree and typically between Two (2) and Eight (8) years of related technical experience in Network Security with large-scale enterprise/global networks in a high-paced, diverse environment. (Additional experience may be considered instead of a degree.)
  • DoD 8140.01 and DoD 8570.01-M IAT Level II compliant certification (current)
  • Must be able to successfully obtain/maintain CSSP Infrastructure Support certification within 120 days of start date (post-hire)
  • Firewalls (e.g. Palo Alto, Juniper, Cisco, etc.)
  • Routers/Switches (e.g. Juniper, Cisco, etc.)
  • Intrusion Detection Systems / IDS Products (e.g. FireEye, F5 Load Balancer, Cisco FTD, etc.)
  • Unix, RHELS OS, Windows Enterprise AD, VMware

Salary.com Estimation for Senior Firewall Engineer with Security Clearance in Springfield, VA
$141,773 to $166,233
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