ISSO (TS Clearance)

Zachary Piper Solutions is currently looking for an Information System Security Officer (ISSO) to support a high-profile federal cybersecurity program on-site in Bluemont, VA . The ISSO will play a critical role in securing National Security Systems (NNS) by implementing and validating NIST RMF controls, managing compliance documentation, and applying encryption standards to protect sensitive data. This position requires an active TS clearance and the ability to obtain program-specific suitability.

Responsibilities for the ISSO include:

• Assess NSS systems and provide recommendations for mitigating cyber risk.
• Utilize authorized compliance tools to track activities, approvals, and reporting.
• Develop business-focused compliance reports detailing mission impact, asset evaluations, and risk mitigation plans.
• Maintain and update security documentation, including SSPs, CPs, MOUs, MOAs, and ISAs.
• Monitor and manage POA&Ms through the full lifecycle, ensuring timely closure.
• Execute continuous monitoring activities, including vulnerability and configuration management.
• Support internal and external audits and respond to cybersecurity-related audit requests.
• Collaborate with system teams to analyze risk and implement mitigation strategies.
• Apply encryption knowledge to NSS architecture and ensure compliance with federal security policies..

Qualifications for the ISSO include:

• Bachelor's degree plus 5+ years of related experience (or 8+ years overall in cybersecurity).
• 3+ years as an ISSO in support of federal programs, including developing SSPs, CPs, PIAs, BIAs.
• 1+ year assessing security controls per NIST SP 800-53 and RMF (NIST SP 800-37).
• Familiarity with CNSSI 1253 and federal security standards.
• 3+ years managing POA&Ms and executing continuous monitoring activities.
• Experience with GRC tools such as Archer, IACS, CSAM.
• Must hold CISSP or CISA certification.
• Must be eligible to work in the United States and maintain a Top Secret clearance.

Compensation for the ISSO include:

• Salary Range: $120,000 - $160,000 *depending on experience*
• Comprehensive Benefits: Medical, Dental, Vision, PTO, Sick Leave if required by law, and Holidays

This job opens for applications on 10/20/25. Applications for this job will be accepted for at least 30 days from the posting date.

Keywords: Information System Security Officer, ISSO, Cybersecurity Compliance, Risk Management Framework, RMF, NIST SP 800-53, NIST SP 800-37, CNSSI 1253, POA&M Management, Continuous Monitoring, Security Control Assessor, System Security Plan, SSP, Contingency Plan, CP, Privacy Impact Assessment, PIA, Business Impact Assessment, BIA, National Security Systems, NSS, Encryption Standards, Vulnerability Management, Configuration Management, Cyber Risk Analysis, Cybersecurity Supply Chain Risk Management, CSCRM, GRC Tools, Archer, CSAM, IACS, Compliance Reporting, Audit Support, FISMA, GAO, OIG, Top Secret Clearance, CISSP, CISA, Security+, Federal Cybersecurity, Governance and Compliance, Risk Mitigation, Technical Documentation, Client Engagement, Analytical Skills, Critical Thinking, Problem Solving

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