A materials engineer is a professional who focuses on the development, processing, and testing of materials used in various products and structures. They work with metals, plastics, ceramics, and composites to improve their performance and durability. By understanding the properties of different materials, they can select the best options for specific applications, such as in the automotive, aerospace, or electronics industries. Materials engineers often collaborate with scientists and other engineers to innovate and solve problems related to material performance. They may also be involved in research and development, quality control, and manufacturing processes, ensuring that materials meet safety and efficiency standards in products like batteries, medical devices, and construction materials.