The engineer will work closely with software engineering, systems engineering, DevSecOps, test engineering, security, architecture, program management, and customer stakeholders to plan, execute, troubleshoot, and validate complex system integrations. October 15, 2026 For 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.