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Information Systems Security Officer

System One

Clarksburg, MD, United States Full-time July 26, 2026
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Vacancy Description

Title: Information Systems Security Officer (ISSO)
Location: Clarksburg, MD (Onsite)
Type: Direct Hire
Compensation: $150,000/year (salary)
Schedule: 40 hours/week
Clearance Required: Active TS/SCI with Polygraph (required to start)

Role Overview
We’re hiring an Information Systems Security Officer (ISSO) to support mission-critical, classified environments. In this role, you’ll help ensure information systems stay compliant throughout the Risk Management Framework (RMF) lifecycle—supporting ATO packages, continuous monitoring, assessments, and audit readiness. You’ll partner closely with technical teams and security stakeholders to drive secure, compliant system operations.
What You’ll Do (Key Responsibilities)

+ Support the full RMF lifecycle for classified information systems

+ Build and maintain security authorization packages and RMF documentation

+ Coordinate and support Authority to Operate (ATO) efforts

+ ...

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