Network infrastructure engineering services are comprised of core infrastructure, voice and video engineering, field engineering, application management and development for networks, network analytics, firewalls, network access controls and bandwidth service delivery. 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.