Sr. ISSO - HHS ESS

Job Description: Senior Information Systems Security Officer (Sr. ISSO) Key Responsibilities Oversee the implementation and enforcement of system security requirements as defined by the PWS. Support and maintain system security plans (SSPs), risk assessments, and authorization documentation. Ensure compliance with federal cybersecurity requirements, including NIST RMF, FISMA, and FedRAMP. Lead security control assessments and support continuous monitoring activities. Conduct vulnerability assessments, risk analyses, and provide recommendations for remediation. Develop and deliver security documentation, reports, and briefings to leadership and stakeholders. Ensure timely and accurate reporting of cybersecurity posture, incidents, and risks. Collaborate with system owners, administrators, and engineers to maintain secure configurations. Support audits, inspections, and authorization processes (ATO/ATC). Mentor and provide guidance to junior ISSOs and cybersecurity staff. Required Qualifications Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or related field. Active Public Trust Clearance Minimum of 10+ years of cybersecurity experience, with at least 4 years as an ISSO in a federal environment. Strong knowledge of NIST SP 800-53, Risk Management Framework (RMF), and federal cybersecurity policies. Experience developing and maintaining security documentation (SSPs, SARs, POA&Ms, etc.). Proficiency in vulnerability management, incident response, and continuous monitoring practices. Excellent written and verbal communication skills, with experience briefing senior leadership. Relevant cybersecurity certifications (e.g., CISSP, CISM, CISA, CAP, or equivalent). Preferred Qualifications Master's degree in Cybersecurity, Information Assurance, or related field. Experience with large-scale federal enterprise systems and cloud environments. Knowledge of Zero Trust architecture and emerging cybersecurity technologies.