Senior Cloud Security Architect - AI & Gov Cloud

Amentum is seeking a Senior Cloud Security Architect to design, build, and operate security controls across Microsoft 365 Commercial and GCC High, Azure, AWS, and hybrid environments. The role is hands-on, guiding secure deployment of AI-enabled services while ensuring compliance with government frameworks. You will lead threat modeling, automation, and integration of security telemetry with enterprise tools, mentoring engineers and coordinating with risk, compliance, and operations teams.