Senior Production Planning Manager

Westlake offers you the potential to enrich your work life and career experience in an entrepreneurial environment. We work together to enhance peoples' lives through our products and presence in the communities in which we operate.​

Can sit near these locations:

• •Corona, CA
• •Oceanside, CA
• •Rialto, CA
• •Lathrop, CA
• •Henderson, NV
• •Denver, CO
• •Phoenix, AZ
• •Fort Worth, TX
• •Lake Wales, FL
• •Okeechobee, FL
• •Pompano, FL

SUMMARY

The Superintendent, Sales & Operations Planning (S&OP) is responsible for leading the monthly S&OP process and translating demand plans into executable production and supply plans across the Roofing manufacturing network. This position leads a team of planners supporting multiple manufacturing facilities and is accountable for aligning demand, supply, capacity, inventory, and production resources to achieve customer service and operational objectives.

The Superintendent, S&OP will oversee production planning, supply planning, capacity planning, inventory deployment, and execution of the monthly S&OP process. Working closely with Manufacturing, Operations, Customer Service, Logistics, Procurement, and Sales, this role ensures production plans are optimized to meet customer demand while maximizing plant efficiency and inventory investment.

This position serves as the primary link between commercial demand plans and manufacturing execution plans, ensuring alignment across ten manufacturing facilities and multiple distribution locations.

DUTIES AND RESPONSIBILITIES

S&OP Leadership

• •Lead the monthly S&OP process, including Supply Review and Executive S&OP meetings.
• •Translate rolling demand forecasts into executable manufacturing and supply plans.
• •Develop and maintain a rolling 6 to 18-month supply plan supporting business objectives.
• •Facilitate cross-functional discussions regarding demand changes, supply constraints, inventory strategies, and capacity utilization.
• •Prepare executive presentations and recommendations for senior leadership review.
• •Drive continuous improvement of S&OP processes, governance, and planning maturity.

Production Planning & Supply Planning

• •Develop production plans across multiple manufacturing facilities to meet forecasted and actual customer demand.
• •Convert approved demand plans into manufacturing schedules and production requirements.
• •Ensure production plans align with available labor, machine capacity, material availability, and warehouse requirements.
• •Collaborate with plant leadership to balance capacity, inventory levels, and customer service requirements.
• •Review plant constraints and develop mitigation strategies to minimize service disruptions.
• •Create and manage production orders within ERP systems.
• •Monitor schedule attainment and production plan adherence across manufacturing facilities.
• •Lead monthly supply reviews with manufacturing teams.

Capacity Planning & Manufacturing Alignment

• •Maintain capacity models for critical manufacturing resources.
• •Analyze capacity utilization and identify bottlenecks across production facilities.
• •Evaluate capital, labor, equipment, and operational constraints impacting supply plans.
• •Develop recommendations to improve capacity utilization and production efficiencies.
• •Partner with plant leadership to create recovery plans for underperforming production areas.
• •Conduct scenario planning to evaluate demand increases, production disruptions, and inventory impacts.

Inventory Deployment & Replenishment Planning

• •Establish inventory stocking strategies across manufacturing sites and distribution yards.
• •Define inventory planning parameters including:
• •Safety Stock
• •Minimum Stock Levels
• •Maximum Stock Levels
• •Reorder Points
• •Replenishment Frequencies

• •Manage inventory deployment strategies across plant and warehouse networks.
• •Create and oversee transfer order processes between plants and distribution facilities.
• •Ensure appropriate inventory levels are maintained to support customer service objectives.
• •Balance inventory investment against service level expectations and operational constraints.

Performance Management

• •Monitor and report key operational metrics including:
• •Production Attainment
• •Production Schedule Adherence
• •Capacity Utilization
• •Service Levels
• •OTIF (On-Time In-Full)
• •Lead Time Attainment
• •Inventory Turns
• •Past Due Orders / Backorder Performance
• •Inventory Days of Supply (DOS)

• •Identify root causes for performance gaps and implement corrective actions.
• •Provide regular performance reviews and recommendations to leadership teams.

Leadership & Team Development

• •Lead and develop a team of Supply Planners supporting multiple manufacturing facilities.
• •Establish standard planning processes and planning disciplines across all locations.
• •Coach planners on production planning, inventory management, ERP utilization, and supply chain best practices.
• •Develop succession plans and skills development programs within the planning organization.
• •Ensure planning resources are appropriately aligned across manufacturing facilities.

Cross Functional Collaboration

• •Partner with Manufacturing, Customer Service, Logistics, Procurement, Sales, and Operations teams.
• •Drive alignment between commercial forecasts and operational execution plans.
• •Participate in strategic initiatives related to inventory optimization, service improvements, network optimization, and operational excellence.
• •Support ERP enhancements and planning system improvements.

EDUCATION

Bachelor's Degree in:

• •Supply Chain Management
• •Operations Management
• •Industrial Engineering
• •Business Administration
• •Logistics
• •Related Discipline

EXPERIENCE

• •8-10 years of experience in production planning, supply planning, manufacturing planning, or S&OP.
• •3-5 years of leadership experience managing planners or supply chain teams.
• •Experience supporting multiple manufacturing facilities.
• •Strong background in production planning and manufacturing operations.
• •Experience with ERP systems such as SAP or JD Edwards.

• •Experience leading formal S&OP processes.
• •Multi-site manufacturing planning experience

SKILLS

• •Proficient with Microsoft Office Suite (Word, PowerPoint, Excel, etc.)
• •Advanced Microsoft Excel skills required
• •Experience with Power BI and business intelligence reporting tools preferred.
• •APICS CPIM and/or CSCP certification preferred. Relevant supply chain planning and manufacturing experience may be considered in lieu of certification.

KEY PERFORMANCE INDICATORS

• •Production Schedule Adherence
• •Production Attainment
• •Capacity Utilization
• •OTIF Performance
• •Customer Service Level
• •Inventory Turns
• •Lead Time Attainment
• •Backorder Reduction
• •Supply Plan Attainment
• •Plant Service Performance
• •Planner Productivity

Communication

• •Ability to effectively communicate and present planning recommendations to plant leadership, commercial teams, and senior management.
• •Strong facilitation skills with the ability to lead cross-functional planning and S&OP meetings.
• •Ability to influence decisions across manufacturing, logistics, customer service, and sales organizations.

PHYSICAL DEMANDS

While performing the duties of this job, the employee is frequently required to sit; stand; walk; use hands to touch, handle, or feel; reach with hands and arms; and talk or hear. The employee is occasionally required to stoop, kneel, or crouch. The employee must regularly lift and/or move up to 10 pounds, frequently lift and/or move up to 25 pounds, and occasionally lift and/or move up to 50 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus.

WORK ENVIRONMENT

The noise level in the work environment is usually moderate as normally based in an office. Some of the work may be required in the operating units which can require usage of required PPE including safety glasses, hearing prote