Senior ISSO (TS/SCI) - Cloud Security & RMF Expert

Peraton; Washington (District of Columbia); On-site; USD 146,000 - 234,000; Full time

Job summary

Peraton in Washington, DC is seeking a Sr Information Systems Security Officer - Cloud to support Federal Strategic Cyber programs. You will lead risk analysis, security control implementation, and RMF activities across systems.

The role requires extensive DoD cybersecurity experience, a cleared status or ability to obtain TS/SCI, and multiple cloud certifications, with collaboration across engineering and stakeholder teams to strengthen defenses and ensure compliance.

Qualifications

• Bachelor's degree in Computer Science, Business Management, or IT related discipline.
• 9+ years in CS or Cybersecurity with 7+ years as ISSO at a cleared facility.
• Must have one of CISSP, GISP, or CASP+/SecurityX; cloud certs: AWS Security Specialty, CCSP, AWS SA Associate, AZ-500, or Google Professional Cloud Security Engineer.
• Must meet DoD 8140.03 Advanced proficiency for ISSM Work Role 722; many certifications or advanced degrees listed.
• Familiarity with security tools including Nessus, Splunk, Guardium, Web Inspect, NMAP.

Responsibilities

• Guide system categorization efforts and ensure proper classification based on mission impact and regulatory requirements.
• Advise on selection and documentation of security controls aligned with risk appetite and compliance.
• Oversee implementation of controls across lifecycles with focus on deliverables quality.
• Plan and document comprehensive security control assessments for effectiveness.
• Prepare risk management documentation for system authorization and executive decisions.
• Direct ongoing monitoring and metrics collection to adjust security strategies.
• Act as principal technical advisor on cybersecurity, risk analysis, incident response, remediation, and audit support.
• Foster security awareness and provide guidance to team members and stakeholders.
• Track and report status, risks, and improvement opportunities to leadership.
• Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices.

Skills

ISSO security work

Security risk analysis

Security controls

Security awareness

Education

Bachelor's degree in Computer Science, Business Management, or IT related discipline

Tools

Tenable Nessus

Splunk

IBM Guardium

NMAP

Job description

Peraton in Washington, DC is seeking a Sr Information Systems Security Officer - Cloud to support Federal Strategic Cyber programs. You will lead risk analysis, security control implementation, and RMF activities across systems.

The role requires extensive DoD cybersecurity experience, a cleared status or ability to obtain TS/SCI, and multiple cloud certifications, with collaboration across engineering and stakeholder teams to strengthen defenses and ensure compliance.