Ability and willingness to work fully onsite in Amarillo, TX Active DoD Top Secret w/ eligibility for DOE Q, or currently active DOE Q security clearance Desired: Cisco ISE, Catalyst/DNA Center, Tenable, Splunk, LTM/GTM load balancers, and DNS/DHCP/IPAM administration. Responsibilities: of the Network Engineer: Maintain 99.9% availability of core network infrastructure, including routers, switches, and data center fabrics, while resolving network incidents and service outages within established SLAs.