McCarthy Building Companies, Inc.
Chandler, AZ
McCarthy Building Companies, Inc. POSITION SUMMARY The SIOP Project Assistant Manager is responsible for leading planning and coordination activities for mechanical and plumbing prefabrication. This role aligns demand, capacity, labor, materials, schedule, and delivery requirements to support reliable shop execution and on-time project commitments. As a manager-level planning leader within the SIOP function, this position serves as the primary link between SIOP, Production, Engineering, Supply Chain, Quality, EHS, and Operational Excellence, with direct ownership of prefab planning, readiness, and coordination. RESPONSIBILITIES Lead Sales, Inventory, and Operations Planning (SIOP) planning for mechanical and plumbing prefab scope. Translate project demand into executable production and delivery plans. Build and maintain constrained plans based on labor, equipment, material, and facility capacity. Identify and escalate shortages, bottlenecks, and delivery risks....