TSSCI ISSO

Job Description
An employer is looking for a TSSCI ISSO to sit in Arlington, VA. The Information System Security Officer (ISSO) is responsible for establishing and enforcing security procedures in alignment with customer objectives and DoD regulations. This role manages Assessment & Authorization (A&A) activities, including development and maintenance of Body of Evidence documentation, System Security Plans (SSPs), and eMASS submissions to support system authorizations and continuous monitoring. The ISSO conducts security audits, ACAS scan and STIG (CKL) reviews, and ongoing security assessments to validate controls, identify vulnerabilities, and implement corrective actions across the system lifecycle. Serving as an IA/Cybersecurity Subject Matter Expert, the ISSO supports SDLC activities, provides security engineering reviews for system changes, coordinates ATO/reauthorization efforts, and develops project management plans to achieve ATO. The role also includes maintaining ISSO te...