The successful candidate must be comfortable working independently, responding to operational issues, supporting multiple concurrent priorities, and clearly communicating technical requirements, instructions, and troubleshooting steps to personnel with varying levels of technical experience, including providing effective remote guidance and support. The successful candidate will provide hands-on and remote systems administration support across SIPRNET environments, including Windows Server and workstation operating systems, Active Directory, Group Policy, DNS, DHCP, PKI, virtualization platforms, enterprise applications, security tools, and other supporting infrastructure.