Security Control Assessor

Tharros supports the Department of Homeland Security (DHS) with cybersecurity services across its Intelligence Enterprise. In support of this mission, we have an immediate opportunity for a Security Control Assessor. In this role you will lead independent security control assessments of DHS Intelligence Enterprise systems, on-premise and in the cloud, from discovery through a completed authorization package supporting ATO, ATC, and IATT decisions. You will write assessment reports, validate remediation, and work closely with system owners and ISSOs. This position is on-site in a Government SCIF in Washington, DC. Duties include but not limited to: Conduct discovery and kick-off meetings with project stakeholders for new and re-authorization activities.Assess management, operational, and technical security controls against NIST, CNSSI, and IC standards.Conduct vulnerability, configuration, container, and serverless testing across on-premise and cloud environments.Document findings in Security Assessment Reports and ensure alignment with POA&Ms.Validate POA&M remediation and document evidence of compliance.Prepare A&A packages in the GRC tool, including risk memoranda and ATO/ATC/IATT letters.Produce System Security Test Reports and A&A portfolio reports.Provide recommendations to mitigate risk and improve the security posture of assigned systems.