Information System Security Officer (ISSO)
Peraton · Herndon, VA, US
About this role
## Information System Security Officer (ISSO) **Location:** Herndon, VA **Sector:** Space & Intelligence **Type:** Mid-to-Senior --- ### Responsibilities - Serve as the security lead for assigned systems and act as the primary interface with the Customer’s security teams and program leadership. - Maintain and update RMF and ICD 503 artifacts (e.g., SSP, SCTM, POA&M, IRP) as the system evolves. - Track vulnerabilities, coordinate patching/remediation, and ensure findings are closed on schedule. - Manage continuous monitoring activities, including scanning, log review, security reporting, and compliance checks. - Support accreditation and re-accreditation efforts; prepare documentation and coordinate actions with the team. - Validate and oversee implementation of technical controls across system components (e.g., OS hardening, access controls, audit, configuration management). - Provide security guidance on system changes, new integrations, and capability deployments. - Work with users, administrators, and developers to ensure changes meet Customer security expectations before implementation. - Maintain situational awareness of program risks and communicate impacts and required mitigations to leadership. --- ### Required Qualifications - **Active TS/SCI with Polygraph** - **Bachelor’s degree** with **8+ years** of relevant experience; **or** **Master’s degree** with **6+ years**; **or** **4+ years** relevant experience in lieu of a degree - **Active DoD IAT Level I Certification** - Experience supporting **Assessment and Authorization (A&A)** activities and associated information assurance processes/documentation using **RMF** - Experience supporting **Intelligence Community or DoD mission systems** - **RMF and Xacta** experience - Strong understanding of **ICD 503**, **RMF**, **NIST SP 800-53**, **DIA policies**, and **DoD cybersecurity requirements** - Strong writing and system security documentation skills - Ability to communicate effectively with technical and non-technical personnel - Ability to take direction and work productively in a team --- ### Desired Qualifications - Background with cross-domain environments, classified networks, or cloud-based systems in the intelligence community - Experience working with **Splunk** - Experience supporting programs with tight operational timelines and rapid change cycles - Experience with **AWS/Google Cloud-hosted** information systems or applications - Experience with **Red Hat or CentOS Linux** - Experience working in a **DevSecOps** environment --- ### Peraton Overview Peraton is a next-generation national security company delivering mission-critical solutions across domains including land, sea, space, air, and cyberspace. --- ### Target Salary Range **$135,000 – $216,000** (typical range; final offer depends on factors including scope, experience, education, skills, competencies, and location). May include overtime, shift differential, and/or discretionary bonus depending on role.
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