Final answer:
Foodservice employees who do not interact directly with guests typically work in the back of house, handling roles like kitchen staff and food preparation.
Step-by-step explanation:
Foodservice employees who do not interact directly with guests work in the back of house. This area encompasses roles such as kitchen staff, dishwashers, and food preparation personnel. Employees in these roles focus on the operational aspects of food service, ensuring that meals are prepared and delivered to the front of house efficiently and safely. These roles are critical in any dining establishment but are separate from guest-facing positions, which are categorized as front of house, guest services, or customer relations.