March 10, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Leidos is seeking an Information Systems Security Engineer (ISSE) for a technical development program supporting cloud-based applications, and its associated cloud infrastructure located on a highly secure network.
Key Responsibilities
Platform Deployment & Integration
- Lead end-to-end deployment of Cortex XSIAM for federal and enterprise clients, including data source onboarding, log ingestion, and normalization.