Principal Supply Planner

Flexcon · Spencer, United States

The Principal Supply Planner is responsible for developing, managing, and continuously improving the end-to-end supply plan and supply strategy for assigned products, product families, or business units. This role translates demand forecasts into executable, capacity-feasible production and procurement plans while balancing customer service, inventory investment, and total supply chain cost.

Minimum Knowledge, Education And Skill Requirements

• Bachelor's degree in Supply Chain, Operations, Engineering, Finance, Economics, Mathematics, or related field preferred
• ASCM/APICS certification (CPIM, CSCP) strongly preferred
• 5+ years of experience in supply planning, production planning, materials management, or manufacturing operations
• Deep hands-on experience with MRP, MPS, RCCP, and capacity planning
• ERP experience required (Oracle preferred)
• Advanced Excel and data analysis skills (modeling, scenario analysis, data visualization)

Strong understanding of

• Material Requirements Planning (MRP)
• Master Production Scheduling (MPS)
• Capacity Planning and Rough-Cut Capacity Planning
• Inventory Management and Inventory Policy
• Manufacturing processes and lead time structures

• Ability to perform scenario modeling and what-if analysis
• Strong financial and business acumen (inventory, cost, service trade-offs)
• Clear and confident communicator able to present recommendations to leadership
• High accountability and ownership mindset
• Strong organizational and time-management skills
• Ability to lead cross-functional discussions and drive decisions
• Detail-oriented with strong systems and process discipline
• Ability to thrive in a fast-paced, high-urgency environment

Duties And Responsibilities

• Develop and maintain short- and long-term supply and production plans aligned with demand and S&OP
• Run MPS and MRP processes and ensure supply plans are capacity-feasible
• Convert planned orders into production and purchase orders as needed
• Balance production schedules across work centers
• Allocate inventory to support customer demand and service targets
• Monitor and adjust priorities based on supply constraints and business needs
• Own inventory strategy (MTS/MTO, safety stock, decoupling points)
• Establish and maintain inventory targets and planning parameters
• Monitor FG, WIP, and raw materials for risks, excess, or shortages
• Support new product launches, transitions, and end-of-life planning
• Perform rough-cut and detailed capacity analysis
• Identify capacity constraints and recommend solutions (overtime, outsourcing, schedule changes, inventory builds)
• Run scenario and what-if analysis to support decision-making
• Support Supply Review within S&OP process
• Provide supply constraints, risks, and scenario analysis to leadership
• Support S&OE execution and short-term adjustments
• Communicate risks and recovery plans to cross-functional teams
• Identify and address risks related to cost, service, quality, and capacityDevelop mitigation and recovery plans for supply disruptions
• Escalate critical issues with recommended actions
• Maintain planning master data and system parameters
• Ensure accuracy and integrity of planning systems
• Support continuous improvement in planning tools and processes
• Partner with Manufacturing, Procurement, Warehousing, Engineering, Finance, and Customer Service
• Translate supply plans into inventory and capacity impacts
• Support KPI tracking and financial planning cycles
• Participate in process improvement and standard work development
• Category: Hybrid (minimum of 3 days on site in Spencer, MA)

Compensation & Benefits

• Base salary
• Healthcare coverage (medical, dental, and vision)
• Life and disability insurance
• 401(k) with company match
• Paid time off
• Wellness programs
• Tuition assistance
• Expected salary range(s) for this in-person position in Massachusetts is $89,110.69-$148,517.82.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities