Firewall Engineer - TX, NC, AZ

Information Security Engineer 4 – Firewall Engineer

The Information Security Engineer 4 will support complex and large-scale firewall engineering initiatives across the enterprise. This role requires deep expertise in Palo Alto and/or Fortinet firewalls, strong routing and network protocol knowledge, and the ability to evaluate multi-factor security engineering challenges. The engineer will analyze complex network security issues, propose solutions, implement firewall configurations, support deployment efforts, and collaborate closely with security and infrastructure teams. This position requires hands-on engineering ability — not policy administration — and the capacity to support long-term, large-scale network security strategies.

• Engineer and implement firewall changes across Palo Alto and/or Fortinet technologies

• Troubleshoot complex network security issues across large enterprise environments

• Analyze routing, protocols, NAT, ACLs, VPN configurations, and segmentation requirements

• Build, test, and deploy firewall configurations in production and non-production environments

• Evaluate and resolve escalated firewall, routing, or connectivity issues

• Contribute to engineering design reviews for new applications and network architectures

• Perform packet captures, log analysis, and traffic flow troubleshooting

• Support automation and scripting efforts to reduce manual firewall operations

• Collaborate with networking, cloud, security ops, and application teams

• Ensure compliance with security standards, policies, and architecture guidelines

• Participate in after-hours work as needed for deployments or critical issues

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at employeeservices@apexsystems.com or 844-463-6178.