The successful candidate will routinely interact with employees, management, security professionals, government representatives, and external organizations and must demonstrate sound judgment, discretion, attention to detail, and the ability to manage multiple time-sensitive actions in a dynamic mission environment. The ASSO will work as part of the Special Security Office (SSO) and support the administration, coordination, and execution of personnel security requirements for employees, subcontractors, visitors, and other personnel requiring access to classified and Sensitive Compartmented Information (SCI).