Information System Security Engineer (ISSO) / IT Systems Engineer
Confidential
Full-time
Computer Occupations
Location
Arlington, Virginia, United States
Posted
June 06, 2026
Job Description
We are seeking an experienced Information System Security Engineer (ISSO) / IT Systems Engineer to serve as the Classified Information Security Lead for the organization. This Arlington‑based role is responsible for managing and safeguarding Secret and Top‑Secret information across diverse research and operational environments.
Candidates must be U.S. citizens with an active Top Secret (TS) clearance and