You can find inventory jobs in many fields, such as manufacturing, warehouse distribution, and retail, to name just a few. Although your specific duties may vary slightly by field, most people who work in inventory have similar responsibilities. These include ensuring that products or the raw materials for manufacturing remain in stock, keeping track of orders and supply levels, and performing routine quality control inspections of inventory storage areas to ensure there are no issues with the materials. You record your work and present reports to your supervisors about inventory levels or changes in supply or demand.