• Lead and execute cybersecurity control assessments against a defined subset of key controls aligned to established frameworks (NIST SP 800-53 Rev. 5). • Assess control implementation status using standardized criteria and validation methodologies. (NIST SP 800-53A Rev. 5). • Test information systems using documentation review, system walk-throughs, and stakeholder interviews to assess the design and operating effectiveness of NIST SP 800-53 Rev. 5 security controls. • Apply consistent judgment to determine evidence sufficiency and appropriateness. • Lead planning, kickoff, execution coordination, and closeout activities for assigned assessment engagements. • Coordinate assessment activities and task assignments across Control Assessors to meet delivery timelines. • Serve as the primary point of contact for client stakeholders during assessment engagements. • Review and approve assessment narratives, findings, and control determinations prior to quality assurance submission. • Ensure assessments are executed consistently across multiple clients to support trend analysis and benchmarking. • Enforce adherence to defined assessment methodologies, scope boundaries, and validation standards. • Support quality assurance reviews by addressing feedback and ensuring accuracy, clarity, and consistency of deliverables. • Lead and participate in client interviews, system walkthroughs, and working sessions in a professional, structured manner. • Clearly communicate assessment scope, expectations, and evidence requirements to stakeholders. • Present assessment results, key findings, and risk implications to executive leadership and board-level stakeholders in a clear, concise, and professional manner. • Mentor and guide Control Assessors on assessment techniques, documentation standards, and professional judgment. • Escalate risks, issues, or control interpretation questions to program leadership as appropriate.