About BAE Systems Space & Mission 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. As an intern, you will perform structural analysis on advanced satellite and tactical hardware which may include spacecraft, instruments, antennas, electronics, precision mechanisms, optical systems, and ground support equipment.