Security Network Engineer III

Our client is seeking a Senior Network Firewall Engineer to support and optimize enterprise network security infrastructure, with a primary focus on firewall management and a large-scale migration from Palo Alto to Cisco firewalls. This hybrid, contract-to-hire position will work closely with the hiring manager and a small team of network engineers to design, implement, maintain, and enhance secure network connectivity across the organization. The ideal candidate will bring strong hands-on firewall expertise, experience supporting enterprise environments, and the ability to lead security-focused projects while ensuring compliance and operational excellence.

• 5+ years of hands-on network security experience, specifically focused on firewall administration and support * Strong experience managing and troubleshooting enterprise firewall environments * Experience with Cisco firewalls (preferred platform) * Experience with Palo Alto firewalls * Knowledge of secure network architecture and network security best practices * Experience supporting firewall migrations, upgrades, or large-scale security projects * Ability to perform incident response, root cause analysis, and firewall policy management * Experience monitoring network health, capacity, and performance * Strong problem-solving and analytical skills Ability to work collaboratively with technical teams and business stakeholders * Cisco firewall certifications * Palo Alto certifications * CompTIA Security+ or similar security certifications * Experience with Cisco Catalyst Center * Experience with Cisco Identity Services Engine (ISE) * Experience with Netscaler or similar load balancing technologies * Experience with Zscaler * Network automation and scripting experience * Experience working in highly regulated environments (PCI, gaming, or similar) * Bachelor’s degree or relevant technical education * Project leadership or project management experience Experience with governance, compliance audits, and security documentation