**Description**

SAIC is seeking a motivated and skilled  **Senior Information Systems Security Officer (ISSO)**  to support cybersecurity and compliance activities for mission-critical IT systems on the  **MAJESTIC Joint Program Office (JPO) Team** . In this role, the ISSO will be responsible for implementing, managing, and assessing system security controls to ensure compliance with government regulations, standards, and best practices, including  **NIST 800-53** ,  **RMF** , and other federal security policies.

The ideal candidate will work closely with system owners, administrators, and cross-functional security teams to assess risks, maintain security postures, and ensure the confidentiality, integrity, and availability of information systems that support the mission. This role requires on-site support  **in Springfield, VA** .

**Key Responsibilities:**

+ Ensure compliance with Risk Management Framework (RMF) requirements by developing, maintaini...