U.S. Citizenship Required. Ability to qualify for a TOP SECRET US Department of Defense security clearance required. Candidate must ultimately be SAP and SCI program eligible. This position is in-person. Toyon is seeking an experienced Information Systems Security Manager (ISSM) for our fast-paced Department of Defense environment. The ideal applicant would have recognized success working on classified computing systems under the NISPOM Rule 32 CFR Part 117, the DCSA Assessment and Authorizati