A concession worker is a food service professional who works at a food stand or walks the aisles at a sporting or concert venue. As a concession worker, you may find work at other large public events, such as street fairs or carnivals. Your main duties involve food preparation and beverage sales, and you must follow all health and safety precautions. You need strong service skills because you interact with customers constantly in this job. Other qualifications for this career include a high school diploma, prior experience in food service, and the ability to be on your feet for long stretches of time.