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. From revolutionary space missions and world-renowned sensors to data and cyber solutions, our employees have opportunities to work on unique cutting-edge missions that help our customers learn about our planet, protect lives, and build a better tomorrow.