Senior Network Security Engineer

Overview

GovCIO is seeking a highly experienced Senior Network & Security Engineer to lead the design, operation, troubleshooting, and continuous improvement of enterprise network-security infrastructure. This role is responsible for Palo Alto Networks next-generation firewalls, Panorama, High Availability, Cisco switching, network segmentation, Cortex XSIAM, and Strata Logging Service.

The Senior Engineer will serve as a technical escalation point for complex network and security incidents, lead architecture and implementation initiatives, establish standards, and partner with SOC, infrastructure, cloud, application, and leadership teams to reduce risk and maintain highly available services.

This position will be located within the United States and will be a fully remote opportunity. Responsibilities:

The successful Senior Network & Security Engineer will be a hands-on technical leader with deep expertise in Palo Alto Networks firewalls, Panorama, HA, and Cisco enterprise networking. This person will lead firewall-policy and microsegmentation design, troubleshoot complex TCP/IP and packet-flow issues, ensure resilient HA operations, and integrate security telemetry with Cortex XSIAM and Strata Logging Service. The candidate must be able to independently lead technical projects, resolve high-impact incidents, improve security controls, and mentor other engineering team members.

• Lead the design, deployment, administration, and lifecycle management of Palo Alto Networks NGFW environments running PAN-OS.
• Own centralized firewall management through Palo Alto Panorama, including device groups, templates, template stacks, policy inheritance, upgrades, configuration backups, log monitoring, and firewall onboarding.
• Design and govern security policies using zero-trust, least-privilege, application-aware, and risk-based principles.
• Configure and troubleshoot security zones, NAT, virtual routers, static and dynamic routing, IPs