RMF Security Control Assessor – TS/SCI, ATO/ATC

Tharros is seeking a Security Control Assessor to lead independent security control assessments for DHS Intelligence Enterprise systems, both on-premise and cloud. The role covers discovery through ATO/ATC/IATT packages, with responsibility for writing Security Assessment Reports and validating remediation. You will collaborate with system owners and ISSOs, document evidence of compliance, and prepare A&A artifacts in the GRC tool. The position is on-site in a Government SCIF in Washington, DC.