An equipment operator, or heavy equipment operator, is a construction worker who is trained to use heavy construction machinery, such as cranes, bulldozers, or backhoes. As an equipment operator, your responsibilities and duties vary, depending on the machine you operate. All jobs require that you operate the equipment safely and according to the directions of the site supervisor. Heavy equipment operators are familiar with the care and basic maintenance of their machines, as well as their abilities and limitations. Safety is your first priority. You must be able to work in concert with the rest of the operators and workers to meet project deadlines.