Description Special Security Officer (SSO) - Dyess AFB, TX Leidos is looking for a mission-focused Special Security Officer (SSO) to support SCI security operations at Dyess Air Force Base, Texas. This is a temporary yet highly critical position-lasting from 30 days to a year-where you'll serve as a vital force within the Air Combat Command Wing's SCI program. In this role, you'll ensure the seamless operation of the Special Security Office and provide expert guidance to local and tenant SCIFs