Lead Information System Security Officer (ISSO)

SAIC•Washington, DC

22d•Onsite

About The Position

SAIC is seeking a Lead Information System Security Officer (ISSO) to support a critical U.S. government agency in the National Capital Region. This role serves as the primary business liaison and single point of contact for a portfolio of systems while overseeing day-to-day authorization, compliance, and risk management activities. The Lead ISSO reports to the Security Program Management Office (SPMO) Manager and is responsible for leading a small team supporting system security, authorization, continuous monitoring, and risk management functions across assigned systems.

Requirements

Experience supporting system security, authorization, continuous monitoring, and risk management functions.
Familiarity with NIST RMF, NIST SP 800-53, FISMA, and agency cybersecurity requirements.
Experience with GRC platforms such as JCAM/CSAM or eMASS.
Experience with collaboration platforms such as SharePoint and PowerBI.

Responsibilities

Serve as the lead ISSO and primary point of contact for assigned systems and stakeholders.
Oversee and coordinate activities related to ATO support, SSP maintenance, continuous monitoring, POA&M management, SIAs, and Risk Acceptance processes.
Lead a small team supporting system security, authorization, compliance, and risk management activities.
Oversee day-to-day execution of system security and compliance activities across assigned systems.
Coordinate with Information Owners, System/Application Owners, technical teams, privacy stakeholders, and governance teams to resolve issues and track remediation efforts.
Oversee preparation of systems and documentation for Security Control Assessments (SCAs), audits, and ongoing authorization activities.
Track system risks, assessment findings, POA&M activities, and remediation status to ensure timely resolution.
Oversee maintenance of system artifacts and records within GRC platforms such as JCAM/CSAM or eMASS.
Facilitate recurring stakeholder meetings and provide compliance status updates, reporting, and risk summaries.
Provide task oversight, coordination, and guidance to ISSO personnel supporting assigned systems.
Ensure assigned systems remain aligned with NIST RMF, NIST SP 800-53, FISMA, and agency cybersecurity requirements.
Support and maintain reporting dashboards, status tracking, and collaboration artifacts using SharePoint, PowerBI, and related collaboration platforms.