About BAE Systems Electronic Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Roles and Responsibilities may include: Utilize computer-aided design equipment and/or graphic tools to design components, systems, portion of systems and modify existing designs to develop or improve production.