SIOP Project Assistant Manager
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.
- Coordinate readiness across engineering release, material availability, labor capability, and schedule.
- Track and report forecast accuracy, capacity utilization, plan adherence, shortage trends, and on-time delivery.
- Partner with Production and OpEx to improve planning discipline, KPI visibility, and standardization.
- Performance Measures
- Planning effectiveness, including forecast accuracy, capacity utilization, plan adherence, and production schedule adherence.
- Execution and readiness performance, including on-time delivery, shortage trends, and overall readiness performance.
- Core Interfaces: This role works closely with the following key partners:
- SIOP leadership and planning teams
- Production managers and supervisors
- Manufacturing Engineering and Industrial Engineering
- Operational Excellence
- Quality and EHS
- Supply Chain, Procurement, and Logistics
- Finance and business leadership, as needed
QUALIFICATIONS
- Bachelors degree in Engineering, Construction Management, Supply Chain, Manufacturing, Industrial Engineering, Operations Management, or a related field.
- Experience in prefabrication, manufacturing, construction operations, production planning, supply chain, or logistics.
- Strong working knowledge of capacity planning, inventory planning, production scheduling, and delivery coordination.
- Strong analytical skills with experience using Excel-based models, dashboards, and planning tools.
- Experience supporting mechanical or plumbing prefabrication.
- Experience in a high-mix production environment.
- Experience with ERP, MES, Smartsheet, Power BI, or similar tools.
- Experience working in a KPI-driven operating environment.
- Smartsheet, Power BI, or similar tools.
- Experience working in a KPI-driven operating environment.
McCarthy is proud to be an equal opportunity employer, including disability and protected veteran status.
NOTICE TO EXTERNAL SEARCH FIRMS: McCarthys Talent Acquisition Team is the only authorized representative permitted to engage with external search firms, staffing agencies, or other third-party recruiting partners. McCarthy maintains an Approved Agency List for recruiting partners, which is reviewed and updated annually.
McCarthy will only consider submissions from agencies with a signed fee agreement in place for the current year. McCarthy does not accept unsolicited resumes, candidate submissions, or referrals from agencies that do not meet these requirements.
If a candidate is submitted without an active agreement, McCarthy will have no obligation to pay any fees and reserves the right to contact, engage, interview, or hire such candidate(s) without any financial or other responsibility to the submitting agency. Unsolicited resumes, including those sent directly to hiring managers or other employees, will be considered the property of McCarthy.
Equal employment opportunity, including veterans and individuals with disabilities.
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