As a fire sprinkler designer, you create fire sprinkler layouts that offer structural compliance and maximum efficiency while meeting legal and industry standards. Your job duties include reading blueprints, drawing floor plans with CAD software, and providing field support as needed. You also submit commercial designs for approval by an architect or engineer and your client. Other duties may include completing hydraulic calculations and determining material requirements. You may also install, inspect, service, and perform maintenance of the sprinkler system, such as overhead and underground pipes, fire pumps, and hoses.