Cooking support (also help cook) is the name for helpers in the kitchen, they support a sole chef or a chef de partie. They usually perform simple tasks like:
cut ingredients
prepare individual work steps
preparation of various "simple" dishes, e.g. Salads, side dishes
discharge of materials
Usually kitchen aids are used as all-round handyman workforce in the entire kitchen area.
A dishwasher is responsible for:
remove food scraps from dishes
dishwasher in and out
cleaning dishes, glasses, cutlery and cooking utensils
cleaning and keeping clean the shelves and the entire kitchen
make sure that the kitchen staff has enough free and clean work space available
disposal of food and drinks