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. Lead role in managing project execution during the fabrication & assembly, and verification & delivery phases of the payload lifecycle, overseeing mechanical assembly, electrical integration, functional, environmental, and performance testing processes with precision.