A grocery clerk works at a grocery store and performs a variety of job duties for all departments. As a grocery clerk, you receive deliveries and check invoices, stock shelves and back-room inventory areas, help assemble displays, and make sure that all items are in their proper places during store hours. You also provide customer service assistance whenever someone has a question and may assist with training other staff members. Qualifications for this career include either a high school diploma or a combination of related experience and training. You also need organizational and multitasking skills, strong attention to detail, and the ability to lift heavy objects.