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. When you join our engineering group, you will be a key technical leader, mentoring other engineers and collaborating with Systems, Hardware, and Test engineers throughout the software development lifecycle - from Requirements Development to Design, Coding, Integration, and Testing.