Senior Cyber Systems Administration Advisor

Peraton

Cyber Systems Administrator managing enterprise firewall infrastructure in support of DOE network security. Responsible for administration, compliance, and continuous improvement of security measures and systems.

Posted 6/26/2026full-timeGermantown • Maryland • 🇺🇸 United StatesSenior💰 $135,000 - $216,000 per yearWebsite

Tech Stack

Tools & technologies

FirewallsTCP/IP

About the role

Key responsibilities & impact

Implement, configure, and maintain enterprise next-generation firewalls (NGFWs) in support of DOE network security requirements
Develop, review, and enforce firewall rule sets and Access Control Lists (ACLs)
Design and maintain network segmentation, DMZ configurations, and traffic flow policies
Manage and tune Intrusion Detection/Prevention Systems (IDS/IPS) integrated with firewall infrastructure
Monitor firewall logs, SIEM alerts, and network traffic flows to identify indicators of compromise

Requirements

What you’ll need

Minimum of 12 years with BS/BA; Minimum of 16 years with High School Diploma.
Must be a US Citizen
Must be able to obtain and maintain a Department of Energy (DOE) security clearance
Demonstrated hands-on experience administering and managing enterprise firewalls (e.g., Palo Alto, Cisco Secure Firewall, Fortinet FortiGate)
Working knowledge of TCP/IP networking, VPN management, network segmentation, and perimeter security architecture
Experience with SIEM platforms, IDS/IPS systems, and network traffic analysis tools
Strong documentation skills with the ability to produce clear technical procedures, configuration records, and compliance artifacts.

Benefits

Comp & perks

Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development
Discretionary bonus

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

firewall configurationAccess Control Listsnetwork segmentationDMZ configurationsIntrusion Detection SystemsIntrusion Prevention SystemsTCP/IP networkingVPN managementnetwork traffic analysissecurity clearance

Soft Skills

documentation skillstechnical writing