Sr Firewall Administrator
GDT - General Datatech, Houston, TX, United States
Title: Sr Consultant, Firewall Administrator
Location: Houston, TX (Woodlands) Onsite 5 days a week
Type: Contract, 6-month with possibility of extension
*This is a W2 only role, we are unable to offer sponsorship or work with 3rd party vendors
Our client is seeking an experienced Palo Alto and Cisco Firewall Administrator to manage and support their NGFW environment. This role is responsible for the day-to-day operation and security posture of Palo Alto and Cisco firewalls, including software upgrades, security policy development, NAT configuration, auditing, and ongoing optimization. The ideal candidate is comfortable working in a production enterprise environment and understands both security requirements and network operations realities.
Key Responsibilities
Firewall Operations & Administration
Administer Palo Alto and Cisco NGFWs (physical, virtual, and cloud-based)
Perform software upgrades, hotfixes, and content updates
Monitor firewall health, performance, and capacity
Troubleshoot connectivity, performance, and security issues
Security Policy Management
Design, implement, and maintain security policies using best practices
Manage App-ID, User-ID, Content-ID, URL Filtering, and Threat Prevention
Continuously review and optimize firewall rules to reduce risk and complexity
NAT & Traffic Engineering
Design and manage source NAT, destination NAT, and policy-based NAT
Troubleshoot complex NAT and routing scenarios
Architecture & Design
Support firewall architecture for data center, cloud, remote, and branch environments
Participate in network and security design reviews
Auditing & Compliance
Perform firewall rule audits and access reviews
Support internal and external security audits
Required Qualifications
5+ years of hands‑on experience with Palo Alto and Cisco firewalls
Strong experience with OS upgrades and lifecycle management
Expertise in security policy and NAT design
Experience with Panorama and Firepower Management Center
Strong understanding of TCP/IP networking and routing
GDT IS AN EQUAL OPPORTUNITY EMPLOYER. Applicants and employees are considered for positions and are evaluated without regard to mental or physical disability, race, color, religion, gender, national origin, age, genetic information, military or veteran status, sex, marital status, gender identity or any other protected Federal, State/Province or Local status unrelated to the performance of the work involved.
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Location: Houston, TX (Woodlands) Onsite 5 days a week
Type: Contract, 6-month with possibility of extension
*This is a W2 only role, we are unable to offer sponsorship or work with 3rd party vendors
Our client is seeking an experienced Palo Alto and Cisco Firewall Administrator to manage and support their NGFW environment. This role is responsible for the day-to-day operation and security posture of Palo Alto and Cisco firewalls, including software upgrades, security policy development, NAT configuration, auditing, and ongoing optimization. The ideal candidate is comfortable working in a production enterprise environment and understands both security requirements and network operations realities.
Key Responsibilities
Firewall Operations & Administration
Administer Palo Alto and Cisco NGFWs (physical, virtual, and cloud-based)
Perform software upgrades, hotfixes, and content updates
Monitor firewall health, performance, and capacity
Troubleshoot connectivity, performance, and security issues
Security Policy Management
Design, implement, and maintain security policies using best practices
Manage App-ID, User-ID, Content-ID, URL Filtering, and Threat Prevention
Continuously review and optimize firewall rules to reduce risk and complexity
NAT & Traffic Engineering
Design and manage source NAT, destination NAT, and policy-based NAT
Troubleshoot complex NAT and routing scenarios
Architecture & Design
Support firewall architecture for data center, cloud, remote, and branch environments
Participate in network and security design reviews
Auditing & Compliance
Perform firewall rule audits and access reviews
Support internal and external security audits
Required Qualifications
5+ years of hands‑on experience with Palo Alto and Cisco firewalls
Strong experience with OS upgrades and lifecycle management
Expertise in security policy and NAT design
Experience with Panorama and Firepower Management Center
Strong understanding of TCP/IP networking and routing
GDT IS AN EQUAL OPPORTUNITY EMPLOYER. Applicants and employees are considered for positions and are evaluated without regard to mental or physical disability, race, color, religion, gender, national origin, age, genetic information, military or veteran status, sex, marital status, gender identity or any other protected Federal, State/Province or Local status unrelated to the performance of the work involved.
#J-18808-Ljbffr