The main responsibilities of a kitchen helper are to assist the chef in preparing ingredients (such as washing, cutting, and marinating), assist in cooking, be responsible for kitchen cleanliness and sanitation, wash dishes and kitchen equipment, and comply with food safety and sanitation regulations. In addition, a kitchen helper also needs to handle other kitchen matters, including receiving and storing ingredients, maintaining kitchen equipment, and handling post-meal cleanup to ensure the smooth operation of the kitchen and food safety.