Strategic Materials Planner & Buyer

Owens Corning; Corona (CA); On-site; USD 60,000 - 90,000; Full time

Job summary

Owens Corning is seeking a Planner Buyer in Corona, CA to plan and purchase materials, ensuring on-time production while balancing costs and stock levels. The role coordinates with production, warehouse, and engineering teams to optimize inventory and supplier performance on site.

Responsibilities include managing lead times, safety stock, and purchase orders from requisition through receipt, while tracking metrics and driving improvements in inventory turns and availability.

Qualifications

• Experience planning, purchasing, and controlling inventory to support production schedules.
• Proven ability to balance service levels, cost, supplier performance and inventory.
• Familiarity with demand forecasts, MRP, purchasing processes and data accuracy.

Responsibilities

• Plan and purchase materials, components, finished goods, and supplies to meet production and operational demand.
• Monitor daily inventory levels to maintain stock availability while minimizing excess and obsolete inventory.
• Review MRP outputs, forecasts, min/max levels, safety stock, reorder points, lead times and open POs for accuracy.
• Convert approved requisitions or planning recommendations into purchase orders and manage through receipt.
• Expedite, defer, cancel, or adjust orders based on demand and priority changes.
• Collaborate with production, warehouse, customer service, sales, engineering, quality and finance teams.
• Identify potential shortages or disruptions and communicate risks with corrective actions.
• Maintain accurate planning data, including supplier lead times, pricing, quantities, and item master data.
• Support cycle counts, physical inventories, root-cause analysis and reconciliation of discrepancies.
• Monitor supplier delivery performance, resolve delays, address quality issues, and negotiate pricing.
• Recommend inventory control improvements to reduce costs and improve turns.
• Track key purchasing and inventory metrics such as turns, stockouts, and on-time delivery.

Skills

Planning

Purchasing

Inventory control

Demand forecasting

MRP

Supplier management

Cross-functional collaboration

Vendor negotiation

Tools

ERP systems

Job description

Owens Corning is seeking a Planner Buyer in Corona, CA to plan and purchase materials, ensuring on-time production while balancing costs and stock levels. The role coordinates with production, warehouse, and engineering teams to optimize inventory and supplier performance on site.

Responsibilities include managing lead times, safety stock, and purchase orders from requisition through receipt, while tracking metrics and driving improvements in inventory turns and availability.