Staff Cyber Security Engineer

Leidos is seeking a Staff Cyber Security Engineer to secure complex, mission-critical systems for government and commercial clients. You will design secure architectures, lead threat modeling, and drive implementation of advanced cyber controls across cloud and on-prem environments. Responsibilities include incident response leadership, vulnerability management, policy development, and security assessments. You’ll collaborate with cross-functional teams, mentor junior engineers, and help evolve Leidos’ cyber posture in a highly mission-driven, innovative, and collaborative environment.