April 7, 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. It is a high-impact engineering role responsible for advancing endpoint security posture, optimizing cyber tool performance, and ensuring the reliability of security services across more than 15,000 enterprise endpoints.