Extensive experience administering Microsoft Windows and RHEL enterprise environments, including technologies such as AD DS, Group Policy, DFS, WDS, WSUS, MECM/SCCM, MDT, PXE, PKI, Kerberos, and Linux/Windows integration technologies such as Centrify, Samba, SSSD, or NIS; experience developing automation and administrative scripts using PowerShell, Bash, Python, Perl, C, or similar languages. Experience implementing cybersecurity and compliance controls, system hardening, vulnerability remediation, and compliance assessments using technologies such as ACAS, Splunk, Nessus, SCAP, STIG/EVAL STIG, and Ivanti within environments governed by NISPOM, JAFAN, JSIG, DFARS, and/or DoD RMF requirements.