Lead information systems security for a cleared defense contractor, managing a team of ISSOs and Security Administrators through the RMF process while ensuring compliance with NISPOM, DCSA, and NIST 800-53 standards. Responsibilities include vulnerability management, STIG compliance, security incident investigation, insider threat coordination, and preparation for DCSA assessments.… Requires 8+ years IT experience with 5+ years as an ISSM in a cleared facility, proficiency in Windows/Linux, eMASS, Tenable, SIEM tools, and IAM Level 3 certification (CISSP, CISM, or GSLC). Strong background in container orchestration, infrastructure automation, and DevSecOps methodologies is valued.