what is a preloader at ups

A preloader at UPS is a package handler who works at the warehouse and is responsible for loading and unloading packages from UPS delivery trucks in a timely and efficient manner. They use "hand-to-surface" methods when handling packages and scan, read, and label packages to determine their destination. Preloaders are also responsible for ensuring that packages are sorted and loaded onto the correct delivery trucks. The term "preloader" is often used interchangeably with "package handler".