Firewall Administrator
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Before you apply
LocationAlexandria, Virginia, United States
Typefull-time
SenioritySenior
Experience7+ yrs
Company size51–200 people
PostedOct 26, 2026 · 1w ago
Verified live14h ago
At a glanceSummarised by Seekless from the posting.
7 years of experience
Bachelor’s degree in computer science, Information Systems, Engineering, or related field
Public trust security clearance
Firewall Administration: Expertise configuring, managing, and troubleshooting enterprise firewalls (e.g., Palo Alto, Cisco ASA/Firepower, Fortinet, Check Point, Juniper SRX)
Network Security: Strong understanding of network security principles, including segmentation, VPNs (IPSec/SSL), NAT, ACLs, and IDS/IPS
Routing & Switching: Working knowledge of routing protocols (BGP, OSPF, EIGRP) and Layer 2 technologies
Policy Management: Ability to design, implement, and optimize security policies, objects, and rulesets while maintaining compliance and minimizing overlap/conflicts
Security Monitoring & Incident Response: Experience with log analysis, packet captures, and network traffic inspection for threat identification and remediation
SIEM Integration: Familiarity with tools like Splunk, QRadar, or ELK for centralized event monitoring and alert correlation
Operating Systems: Proficiency in administering Linux/Unix and Windows Server environments
Change Management: Experience following structured change control processes and documentation in ITIL or ISO environments
Scripting & Automation: Basic to intermediate scripting (Python, PowerShell, or Bash) for automating configuration or monitoring tasks
Documentation: Ability to create and maintain detailed network diagrams, firewall rule documentation, and standard operating procedures
A PaloAlto Networks Certified Network Security Engineer (PCNSE) certification is preferred
Cloud Security: Experience with cloud firewalls and network security configurations in AWS, Azure, or Google Cloud
Next-Gen Firewall (NGFW) Technologies: Advanced knowledge of threat prevention, URL filtering, SSL decryption, application control, and user-ID mapping
Zero Trust Architecture: Understanding of zero trust principles and micro segmentation strategies
Network Access Control (NAC): Experience integrating firewalls with NAC solutions (e.g., Cisco ISE, Aruba ClearPass)
Load Balancing & Proxy Technologies: Familiarity with F5, Citrix Netscaler, or reverse proxy systems
Certifications: Palo Alto Networks Certified Network Security Engineer (PCNSE) Cisco Certified Network Professional – Security (CCNP Security) Fortinet NSE 4–7 CompTIA Security+ / CySA+ / CASP+ Certified Information Systems Security Professional (CISSP) or equivalent
Experience in Regulated Environments: Understanding of compliance requirements (FISMA, FedRAMP, NIST 800-53, PCI-DSS, HIPAA)
Skills
Palo Alto
Cisco ASA/Firepower
Fortinet
Check Point
Juniper SRX
VPN
PAN-OS
Prisma Access
GlobalProtect
IPSec
SSL
NAT
ACLs
IDS/IPS
BGP
OSPF
EIGRP
Splunk
QRadar
ELK
Linux
Unix
Windows Server
Python
PowerShell
Bash
AWS
Azure
Google Cloud
F5
Citrix Netscaler
Cisco ISE
Aruba ClearPass
Benefits
Medical insurance
Dental insurance
Vision insurance
Ad&d insurance
Std insurance
Ltd insurance
Life insurance
401(k)
Paid time off
Pet insurance
About the role
The contractor shall provide IT Infrastructure support services, which includes Tier 1 Help Desk, Tier 2 End User Support, Tier 3 Server, Platform, and Network Infrastructure Support and Engineering. Services shall include, but are not limited to, technical assistance for hardware, software, and network issues; incident and problem resolution; service request management; infrastructure monitoring and support; hardware and software lifecycle support; and management of escalation across all tiers.
Position Description: Responsible for managing and maintaining the organization’s (currently PaloAlto based) firewall infrastructure. This role involves overseeing the deployment, configuration, and support of PaloAlto firewall devices, ensuring optimal performance, security, and availability. This position requires strong knowledge of PaloAlto firewall technologies, excellent troubleshooting skills, and familiarity with network security solutions.
Requirements
Responsibilities
•
Monitoring and optimizing the performance of the network, ensuring efficient resource allocation and minimal downtime.
•
Leading the installation, configuration, and maintenance of PaloAlto firewall devices as well as Cloud firewall configurations.
•
Manage Palo Alto firewall platforms and services, including PAN-OS, VPN, Prisma Access, and GlobalProtect, ensuring lifecycle support through end-of-support timelines.
•
Monitoring and optimizing the performance of firewall systems, ensuring efficient resource allocation and minimal downtime.
•
Diagnosing and resolving complex firewall issues, including connectivity, performance, and security problems.
•
Ensuring the security of the network by applying patches, updates, and security configurations to PaloAlto devices.
•
Maintaining comprehensive documentation of firewall configurations, procedures, and policies.
•
Working closely with other IT teams to support network security needs and integrate firewall solutions with other systems.
•
Providing guidance and mentorship to junior network and firewall administrators and other IT staff.
Required Skills:
•
7 years of experience
•
Bachelor’s degree in computer science, Information Systems, Engineering, or related field
•
Public trust security clearance
•
Firewall Administration: Expertise configuring, managing, and troubleshooting enterprise firewalls (e.g., Palo Alto, Cisco ASA/Firepower, Fortinet, Check Point, Juniper SRX).
•
Network Security: Strong understanding of network security principles, including segmentation, VPNs (IPSec/SSL), NAT, ACLs, and IDS/IPS.
•
Routing & Switching: Working knowledge of routing protocols (BGP, OSPF, EIGRP) and Layer 2 technologies.
•
Policy Management: Ability to design, implement, and optimize security policies, objects, and rulesets while maintaining compliance and minimizing overlap/conflicts.
•
Security Monitoring & Incident Response: Experience with log analysis, packet captures, and network traffic inspection for threat identification and remediation.
•
SIEM Integration: Familiarity with tools like Splunk, QRadar, or ELK for centralized event monitoring and alert correlation.
•
Operating Systems: Proficiency in administering Linux/Unix and Windows Server environments.
•
Change Management: Experience following structured change control processes and documentation in ITIL or ISO environments.
•
Scripting & Automation: Basic to intermediate scripting (Python, PowerShell, or Bash) for automating configuration or monitoring tasks.
•
Documentation: Ability to create and maintain detailed network diagrams, firewall rule documentation, and standard operating procedures.
Nice to have
Preferred Skills:
•
A PaloAlto Networks Certified Network Security Engineer (PCNSE) certification is preferred.
•
Cloud Security: Experience with cloud firewalls and network security configurations in AWS, Azure, or Google Cloud.
•
Next-Gen Firewall (NGFW) Technologies: Advanced knowledge of threat prevention, URL filtering, SSL decryption, application control, and user-ID mapping.
•
Zero Trust Architecture: Understanding of zero trust principles and micro segmentation strategies.
•
Network Access Control (NAC): Experience integrating firewalls with NAC solutions (e.g., Cisco ISE, Aruba ClearPass).
•
Load Balancing & Proxy Technologies: Familiarity with F5, Citrix Netscaler, or reverse proxy systems.
•
Certifications: Palo Alto Networks Certified Network Security Engineer (PCNSE) Cisco Certified Network Professional – Security (CCNP Security) Fortinet NSE 4–7 CompTIA Security+ / CySA+ / CASP+ Certified Information Systems Security Professional (CISSP) or equivalent
•
Experience in Regulated Environments: Understanding of compliance requirements (FISMA, FedRAMP, NIST 800-53, PCI-DSS, HIPAA).
Benefits
SES provides a competitive salary and the following benefits:
•
Medical
•
Dental
•
Vision
•
AD&D
•
STD
•
LTD
•
Company paid Life Insurance
•
401k with employer contribution
•
Paid Time Off
•
Pet Insurance
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