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. Key Roles, Accountabilities and Responsibilities: Assembles electronic components, assemblies, subassemblies and modules by working from samples, visual aids, prints, wiring lists and diagrams, routing instructions and process sheets using appropriate tooling and machinery.