An Aircraft Structural Engineer is responsible for designing, analyzing, and testing the structural components of aircraft to ensure they meet safety, performance, and regulatory standards. They work with materials like aluminum, composites, and titanium to develop lightweight and durable airframes. Their job includes performing stress analysis, inspecting structural integrity, and collaborating with other engineers to optimize designs for aerodynamics and efficiency. These engineers play a key role in aircraft manufacturing, maintenance, and modification to enhance overall flight safety and performance.