Proficiency with monitoring, vulnerability scanning, and compliance assessment tools (ACAS, Splunk, Nessus, SCAP, STIG, Nagios, SolarWinds) and working knowledge of security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS, DoD RMF). Familiarity with enterprise storage systems (e.g., NetApp) and virtual desktop infrastructure (VDI) technologies such as Horizon, Profile Unity, and NVIDIA GPU virtualization (NLS, DLS).