Information System Security Officer (ISSO), Senior

Program Overview

About The Role

We are seeking a highly skilled and innovative Information System Security Officer (ISSO) to join our team in the greater DMV area, supporting the Army National Guard.

Responsibilities

• Manage system‑level cybersecurity programs: oversee RMF lifecycle activities, control implementation, continuous monitoring, and accreditation evidence.
• Review and validate security documentation, system security plans (SSPs), control implementation statements, POA&Ms, and configuration baselines to assess residual risk.
• Coordinate with system owners, engineers, ISSMs, assessors, and integrators to remediate control deficiencies and maintain authorization posture.
• Advise leadership on risk acceptance, compliance obligations, and remediation prioritization; prepare briefing materials for authorization and governance boards.
• Implement and monitor continuous monitoring processes: vulnerability scanning, configuration checks, patch status, and security telemetry integration.
• Support audit and inspection readiness by producing evidence packages, control test results, and remediation verification artifacts.
• Maintain documentation, control traceability, and change records to support eMASS/RMF workflows and accreditation requirements.
• Mentor and guide ISSO/technical staff on control implementation practices, evidence collection, and RMF procedures.

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Qualifications

Qualifications

• Minimum of 8 years with BS/BA; Minimum of 6 years with MS/MA; Minimum of 3 years with PhD

• Clearance: Active TS/SCI clearance.

• Candidate must meet ONE of the following:

  • Master’s degree or Ph.D. in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, Software Engineering, or a related field; OR
  • Relevant DoD/military training (examples: 4C‑FA26A; M09CHN1; A‑531‑0009; Information Systems Security Manager (Advanced) Playlist); OR
  • Relevant professional certification or equivalent experience (examples: CISM, CISSP, CISSP‑ISSMP, FITSP‑M, GCIA, GCIH, GICSP, GSLC).

• Required experience and skills:

  • Cybersecurity experience with at least 3 years performing ISSO or equivalent system security roles in DoD or large enterprise environments.
  • Deep working knowledge of RMF/ATO processes, NIST SP 800‑53 controls, DISA STIGs/SRGs, vulnerability management, and eMASS evidence workflows.
  • Proven ability to validate control implementations, manage POA&Ms, and coordinate remediation across engineering and operations teams.
  • Strong documentation and briefing skills for audit readiness, accreditation packages, and senior leadership updates.

• Desired:

  • Prior DoD/ARNG ISSO experience and familiarity with system authorization timelines and inspection readiness.
  • Experience integrating continuous monitoring with SOC/CIRT workflows and automating evidence collection where feasible.

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SCA / Union / Intern Rate or Range

Details

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.

Benefits Statement: Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at

Application Duration Statement: The application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.