Builders FirstSource - Issaquah WA Yard - 5210 E Lake Sammamish Pkwy SE [Warehouse Associate / Package Handler] As a Material Handler at Builders FirstSource, you'll: Physically handle materials used to construct components and finished products; Ensure movement of such items is optimized by lifting, carrying, stacking items as needed; Operate motorized and non-motorized material handling equipment, some of which may require specialized training...Hiring Immediately >>