Electrical engineers apply electrical, electronic and magnetic theory to obtain solutions for problems related to the development, design and operation of electrical hardware and software, control systems, electrical machines and communications systems. Besides development, design, operations, and research, electrical engineers may be involved in manufacture, installation, and sale of electrical and electronic equipment and are employed by a wide variety of organizations which produce, use or service this equipment.

They work on motor vehicles, power plants, computers and electro-optical devices; they may deal with motors, lighting, lasers, radar or medical equipment. Sub-specialties range from tiny consumer electronic devices to the massive power-generating equipment used by utility companies.