A janitor (caretaker in British English, see American and British English differences)'s a person who takes care of a building, such as a school, office building, or apartment block. Janitors are responsible primarily for cleaning, and often (though not always) some maintenance and security. Titles Also referred to as a cleaning technician, they may also be required to receive training and licensing in various fields (for example, Hazmat, CPR, Boiler Operations, etc.), depending on their empl… (More on Janitor)