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. As the senior SAP security authority on the program, the consultant owns the authorization concept and segregation of duties architecture, designs the governance, risk, and compliance control framework, and is accountable for access control evidence at audit and authorization milestones.