Materials Manager

Position:
Materials (Supply Chain) Manager

Reports To:General Manager

Direct Reports:Buyer(s), Scheduler & Expeditor, and Customer Service

Main

Location:

Trimaster, Guelph, Ontario

Salary Range:$110K to $130K

Summary

The Supply Chain (Materials) Manager is responsible for leading the end-to-end supply chain function for Trimaster Manufacturing, including customer order management, demand planning, production scheduling, material planning, procurement, inventory management, customer service, and supplier performance.

This position ensures the organization has the right materials, in the right quantities, at the right time to meet customer commitments while optimizing inventory investment, working capital, and operational efficiency.

The Supply Chain Manager owns the integrity and execution of the planning systems within the ERP (Microsoft Business Central), including MRP, Production Scheduling (MPS), Rough Cut Capacity Planning (RCCP), and planning master data. Working closely with Production, Engineering, Quality, Sales, and Finance, the Supply Chain Manager develops strategies that improve customer service, supplier performance, inventory management, and overall operational excellence.

Responsibilities

Leadership

• Build a culture of accountability, teamwork, and continuous improvement within the Materials team.
• Hire, train, coach, and mentor team members to support department effectiveness and professional growth.
• Develop and execute the overall supply chain strategy for Trimaster Manufacturing.
• Establish supply chain objectives, processes, and performance metrics aligned with company goals.
• Lead continuous improvement initiatives focused on improving delivery performance, inventory management, supplier performance, and operational efficiency.

Demand Planning, MRP, & MPS

• Own the execution, accuracy, and effectiveness of the Master Production Schedule (MPS) and Material Requirements Planning (MRP) processes within Microsoft Business Central.
• Execute the automated MPS/MRP planning functions within Business Central to translate customer demand into planned production orders, purchase orders, and transfer orders.
• Maintain the MxAPS Production Schedule to align production requirements with customer demand, available capacity, inventory strategy, and delivery commitments.
• Review and validate MRP/MPS-generated recommendations, ensuring appropriate action is taken through production order releases, purchase order creation, and inventory transfer requirements.
• Own the release of production orders from planned status into active production orders based on customer requirements, material availability, capacity constraints, and production priorities.
• Ensure planning parameters within Business Central—including lead times, reorder policies, safety stock, lot sizes, and planning horizons—support accurate MPS/MRP outputs.
• Monitor MPS and MRP performance, identify planning exceptions, and drive corrective actions to improve schedule stability, material availability, and customer delivery performance.
• Collaborate with Production to ensure released production orders are executed effectively while maintaining clear accountability between production planning and shop-floor execution.

Planning System Ownership

• Own the integrity of supply chain data within Microsoft Business Central.
• Maintain accurate planning parameters including:
  • Lead times
  • Safety stock levels
  • Reorder policies
  • Lot sizing rules
  • Supplier information
  • Planning calendars
  • Inventory attributes
• Working through engineering, ensure Bills of Material (BOMs), routings, and manufacturing data support effective planning.
• Identify opportunities to improve ERP functionality, data accuracy, reporting, and planning accuracy.
• Partner with Engineering, Production, and Quality during new product introduction to ensure supply chain readiness.

Procurement & Supplier Management

• Personally manage all relationships and contracts with outside service providers.
• Lead procurement activities supporting production requirements and customer commitments.
• Manage supplier relationships including material suppliers, subcontractors, and outside processing providers.
• Establish supplier performance expectations and…