An electrical engineer is a professional who designs, develops and tests various systems that use electricity to function. They are responsible for designing and developing electrical equipment such as motors, generators, transformers, control systems, and power distribution systems. Electrical engineers also work on electronic devices such as computers, smartphones, and other gadgets. Their main goal is to ensure that the electrical system they create works efficiently, safely, and effectively. They use principles of electricity, electronics, and electromagnetism in their designs.