Position Summary: The Senior Application Security SAP Consultant is responsible for SAP application security and governance, risk, and compliance within an SAP S/4HANA environment, covering authorization design, role management, segregation of duties enforcement, and the access control evidence required to sustain system authorization and support financial audit, in support of a large-scale, greenfield SAP S/4HANA financial management modernization program for a Department of War (DoW) organization. This position operates at the Senior level of the C5MI job architecture and contributes to delivery across a five-gate milestone structure spanning pre-design approval, preliminary design review, critical design review, production readiness review, and closeout.