Avionics engineers develop, test, and maintain electronic subsystems used in aircraft such as navigation systems, communication radios, flight displays, autopilot modules, and sensor suites. They ensure electromagnetic compatibility, software–hardware integration, signal integrity, and compliance with regulatory standards (DO-160, DO-178). They work with systems, software, aerodynamics, and certification teams to ensure safe flight operations. As aircraft become more digital, autonomous, and software-driven, avionics engineering continues to grow rapidly.