Senior Firewall Administrator

SES Corporation

. Provide IT Infrastructure support across Tier 1 Help Desk, Tier 2 End User Support, and Tier 3 Server, Platform, and Network Infrastructure Support and Engineering .

Posted 10/27/2026full-timeAlexandria • Virginia • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing and troubleshooting enterprise firewalls, particularly Palo Alto, while ensuring compliance with security policies and optimizing network performance. Proficient in providing IT infrastructure support across multiple tiers and mentoring junior staff in network security practices.

Highest-signal resume keywords

Palo Alto Firewall ManagementNetwork Security PrinciplesRouting Protocols (BGP, OSPF, EIGRP)Linux/Unix and Windows Server AdministrationPublic Trust Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Firewall ConfigurationIncident ResolutionNetwork Performance OptimizationLog AnalysisPacket CaptureScripting (Python, PowerShell, Bash)Security Policy DesignChange Control ProcessesNetwork Diagram CreationThreat Identification

Soft Skills

MentorshipCollaborationProblem-SolvingTechnical AssistanceCommunication

Tools & Technologies

Palo AltoCisco ASA/FirepowerFortinetCheck PointJuniper SRXSIEM Tools (Splunk, QRadar, ELK)PAN-OSVPNPrisma AccessGlobalProtect

Industry Keywords

IT Infrastructure SupportTier 1 Help DeskTier 2 End User SupportTier 3 Server SupportITILISONetwork SecurityComplianceService RequestsFirewall Lifecycles

Tech Stack

Tools & technologies

CloudFirewallsLinuxPythonSplunkUnix

About the role

Key responsibilities & impact

Provide IT Infrastructure support across Tier 1 Help Desk, Tier 2 End User Support, and Tier 3 Server, Platform, and Network Infrastructure Support and Engineering
Provide technical assistance for hardware, software, and network issues
Resolve incidents and problems and manage service requests
Monitor and support infrastructure
Support hardware and software lifecycles
Manage escalations across all support tiers
Manage and maintain the organization's Palo Alto-based firewall infrastructure
Lead deployment, configuration, maintenance, and support of Palo Alto and cloud firewall devices
Manage PAN-OS, VPN, Prisma Access, and GlobalProtect platforms and services through end-of-support timelines
Monitor and optimize network and firewall performance
Diagnose and resolve connectivity, performance, and security issues
Apply patches, updates, and security configurations
Maintain firewall configuration, procedure, and policy documentation
Collaborate with IT teams to integrate firewall solutions and support network security needs
Provide guidance and mentorship to junior network and firewall administrators and other IT staff

Requirements

What you’ll need

5 years of experience
Bachelor’s degree in computer science, Information Systems, Engineering, or related field
Public trust security clearance
Expertise configuring, managing, and troubleshooting enterprise firewalls (e.g., Palo Alto, Cisco ASA/Firepower, Fortinet, Check Point, Juniper SRX)
Strong understanding of network security principles, including segmentation, VPNs (IPSec/SSL), NAT, ACLs, and IDS/IPS
Working knowledge of routing protocols (BGP, OSPF, EIGRP) and Layer 2 technologies
Ability to design, implement, and optimize security policies, objects, and rulesets while maintaining compliance and minimizing overlap/conflicts
Experience with log analysis, packet captures, and network traffic inspection for threat identification and remediation
Familiarity with SIEM tools like Splunk, QRadar, or ELK
Proficiency in administering Linux/Unix and Windows Server environments
Experience following structured change control processes and documentation in ITIL or ISO environments
Basic to intermediate scripting in Python, PowerShell, or Bash
Ability to create and maintain detailed network diagrams, firewall rule documentation, and standard operating procedures

Benefits

Comp & perks

Medical
Dental
Vision
AD&D
STD
LTD
Company paid Life Insurance
401k with employer contribution
Paid Time Off
Pet Insurance