Manage and administer Cisco Firepower Threat Defense (FTD) firewall environments, including firewall policy management, rule reviews, firmware and software upgrades, daily operational support, troubleshooting, health monitoring, and execution of firewall changes in accordance with established change control processes. The Senior Network Engineer is responsible for the design, implementation, operation, and optimization of secure enterprise network infrastructure and provides advanced technical leadership for LAN, WAN, wireless, firewall, VPN, segmentation, cloud-connected, and network security environments.