Information System Security Officer

Peraton

$104K — $166K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Active Top Secret clearance with SCI eligibility
  • 5+ years of experience with a BS/BA; 3+ years with an MS/MA; or 4 additional years in lieu of a degree
  • Security+ or equivalent certification (DoD 8570 IAM Level II)
  • Experience with SAP assessments and authorizations
  • 3+ years managing Authority to Operate (ATO) processes and Security Authorizations (SA)
  • Familiarity with compliance tools like SCAP and STIGs
  • Strong communication skills and teamwork abilities

Responsibilities

  • Assist the ISSM with security efforts across various environments
  • Perform ISSO duties as detailed by JSIG and relevant regulations
  • Execute and maintain RMF activities including control oversight and monitoring
  • Maintain security authorization documentation such as SSP and incident handling plans
  • Operate continuous monitoring activities like vulnerability management and compliance checks
  • Review and validate security changes following configuration control processes
  • Support incident response through investigation and coordination of containment actions
  • Translate security requirements into actionable guidance for engineering teams

Benefits

  • Comprehensive health insurance
  • Flexible work schedule
  • Professional development opportunities
  • 401(k) retirement plan with company match
  • Generous paid time off and holidays
Full Job Description
Responsibilities

Peraton is seeking a ISSO to support our customer onsite in Annapolis Junction, MD.

  • Assist the Information System Security Manager (ISSM) with information assurance efforts, and systems across numerous environments
  • Perform Information System Security Officer (ISSO) roles and responsibilities as prescribed by the JSIG and other applicable regulations
  • Execute and maintain RMF activities (e.g., control implementation oversight, evidence collection, assessment support, POA&M management, continuous monitoring)
  • Maintain security authorization artifacts (e.g., SSP, control narratives, diagrams, inheritance/leverage controls, CM plan, incident handling plan, contingency artifacts, user/admin procedures)
  • Operate continuous monitoring: vulnerability management, config compliance, patching coordination, scan result triage, risk acceptance, and remediation verification
  • Review and approve security-relevant changes through configuration/change control and validate security configurations after major upgrades
  • Support incident response and reporting: participate in investigations, coordinate containment actions, preserve evidence, and contribute to post-incident lessons learned
  • Ensure least privilege/access governance: account management oversight, privileged access workflows, periodic access reviews, and audit compliance requirements
  • Translate security requirements into implementation guidance that engineering teams can operationalize (clear, testable, and automatable where possible)
Qualifications

Required qualifications

  • Active Top Secret clearance with SCI eligibility
  • 5 years with BS/BA; 3 years with MS/MA; 4 additional years of experience may be considered in lieu of degree
  • Security+ or equivalent certification (DoD 8570 IAM Level II)
  • Experience with SAP assessments and authorizations
  • 3+ years experience with Authority to Operate (ATO) process, continuous monitoring, POA&Ms, Security Authorizations (SA), NIST 800-37, NIST 800-53 Rev4/ Rev5, working with Information System Owners (ISO) and Program Managers (PM)
  • Experience with SCAP, STIGs, and other compliance tools
  • Proven written and verbal communication skills, and the ability to work well with team members

Preferred qualifications

  • Experience with SCRUM methodologies
  • Experience with Ongoing Authorizations
  • Experience with Splunk and/or other auditing compliance tools
  • Experience with ACAS, Nessus, and/or other vulnerability scanners
Target Salary Range$104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

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