This role involves designing and implementing secure configurations, baselines, and automation scripts across classified systems while supporting compliance assessments, audits, and authorization reviews. The engineer will troubleshoot complex security and infrastructure issues, provide cybersecurity mentoring to administrators and ISSOs, and translate security requirements into technical implementations across operating systems, networks, virtualization, and storage platforms.… Requires 8–12 years of hands-on experience securing Windows/Linux environments, deep knowledge of enterprise infrastructure and security controls (Active Directory, firewalls, encryption, privileged access), and expertise with DISA STIGs, RMF, and vulnerability assessment tools. Must hold an active Top Secret clearance, a DoD 8570 IAT Level II certification (e.g., Security+), and demonstrate 3+ years supporting Special Access Program environments.