US Department of Defense - - Responsibilities: Assist customers by answering questions such as item price or location, and handling bulky/heavy items.; Operate an electronic checkout system to record unit price, total customer purchase, and make change.; Perform a variety of duties in handling, preparing and maintaining stock levels of grocery and produce items.; Review stock levels and gather inventory data to maintain the Computer Assisted Ordering (CAO) system.; Prepare and maintain a variety of documents to order commissary items, reconcile invoices, and submit requisitions.