• Execute comprehensive IT security audits on complex systems in accordance with DoD and Federal requirements. • Perform security control validation to verify proper implementation and effectiveness of technical, operational, and management controls. • Conduct vulnerability assessments and analyze findings to identify security gaps and risks. • Support RMF activities including control selection, implementation validation, assessment, and authorization support. • Evaluate applied security mitigations to determine alignment with security requirements and business objectives. • Validate project security controls to ensure compliance with DoD contracting system standards. • Document security findings, risk assessments, and remediation recommendations. • Maintain and update RMF artifacts and assessment results within eMASS. • Collaborate with system owners, engineers, and stakeholders to resolve security issues and implement corrective actions. • Support audits, inspections, and compliance reviews while ensuring accuracy and quality of deliverables.