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. As part of our Electronic Combat Solutions Systems Engineering team, you'll join a diverse group of driven professionals who architect, design, develop, build, integrate, test, and support products and systems that enable our service men and women to execute their missions and return home safely.