Firewall & Network Security Administrator

Firewall & Network Security Administrator

Location: Torrance, CA OR (any of these locations - OH, NC, SC, GA)

Work Type: Onsite 4 days per week

Travel: Yes 5%

Key Responsibilities

• Configure, manage, and maintain Palo Alto Next Generation Firewalls (NGFW), including policies, objects, NAT rules, IDS/IPS policies, App ID, User ID, threat prevention profiles, and GlobalProtect software client, always on VPN and SASE principles.
• Administer and troubleshoot Cisco ASA, Cisco Firepower, and FTD devices, including ACLs, VPNs, and IDS/IPS policies.
• Perform regular firewall rule reviews, cleanup, and optimization to improve performance and reduce risk.
• Security Operations & Monitoring
• Monitor network security alerts, traffic anomalies, and firewall logs using tools such as Panorama, Cisco FMC, SIEM platforms, and packet capture utilities.
• Investigate and remediate network based security incidents, coordinating with SOC or incident response teams as necessary.
• Perform security event correlation and escalation following established SOPs.
• Network Infrastructure Support
• Support secure network connectivity across data centers, branch sites, cloud environments, and remote access solutions.
• Troubleshoot layer 2/3 issues related to routing, switching, VPN tunnels, and connectivity impacts to security appliances.
• Assist in deploying secure architectures for new network builds, migrations, and cloud integrations.

Required Qualifications

• 3 7 years of experience in network security operations or firewall engineering.
• Hands on experience with:
• Palo Alto Networks NGFW (PA series), Panorama, and GlobalProtect.
• Cisco ASA, Cisco Firepower, FMC, and site to site/remote access VPNs.
• Strong understanding of IP networking (TCP/IP, routing, switching, VLANs, BGP/OSPF, NAT).
• Experience with log analysis, packet captures, and troubleshooting tools (e.g., Wireshark).
• Knowledge of threat prevention technologies (IDS/IPS, URL filtering, DNS security, malware analysis).

Preferred Qualifications

• Relevant certifications such as:
• PCNSE, PCNSA (Palo Alto)
• CCNP Security, CCNA Security (Cisco)
• Security+, CySA+, CEH, or GSEC
• Experience with SIEM tools (Splunk, Sentinel, QRadar).
• Familiarity with cloud security for Azure, AWS, or Google Cloud Platform.
• Scripting experience (Ansible, Python, PowerShell, or similar) for automation is a plus.