Senior Information System Security Officer (ISSO)

Job description

Responsibilities Peraton Labs is seeking a poly cleared Senior Information System Security Officer for a mission-critical, highly complex HPC environment enabling research across multiple security domains. You will own day-to-day security operations aligned to RMF, drive continuous monitoring, maintain ATO posture, and partner closely with subcontractor and customer personnel. This position requires full-time on-site work in Laurel, or a customer site near College Park, MD. Key responsibilities may include: *This position may be eligible for an increased sign-on bonus. Eligibility, bonus amount, and applicable terms and conditions will be discussed during the recruiting process* - Lead or co-lead ATO/reauthorization efforts for complex boundary systems - Mentor junior ISSOs and shape security operations playbooks - Perform risk analysis and author formal recommendations to leadership - Drive security engineering outcomes by partnering with internal teams on scalable compliance patterns - Brief senior internal and customer stakeholders on security posture, systemic risk trends, remediation burn-down, and authorization readiness - Act as the Senior ISSO supporting the system security...