About BAE Systems Platforms & Services 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. CNC Programming: Develop, edit, and optimize CNC programs (G-code, M-code) for a variety of machinery, including mills, lathes, routers, grinders, EDM, and honing machines.