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Senior Firewall Engineer with Security Clearance
Crimson PhoenixSpringfield, VA🇺🇸United StatesPosted 13 Jul 2026
Quick Overview
Work Type
Hybrid
Level
Mid Senior
Job Description
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
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