Master Production Scheduler at Aston Carter

Production Planner/Scheduler

A highly reputable manufacturing company is looking for a Production Planner/Scheduler to join their team! This role includes a large range of duties including but not limited to developing and maintaining the master production schedule to align customer demand, production capacity, and inventory strategies, playing a central part in the Sales & Operations Planning (SIOP) process by balancing supply and demand while optimizing service levels, inventory turns, and operational efficiency. The position serves as a key liaison between Operations, Procurement, and Commercial teams, driving schedule execution, data integrity, and continuous improvement across the supply chain.

Job Description:

• Develop, maintain, and manage the master production schedule based on demand forecasts, customer orders, and capacity constraints.
• Translate demand plans into executable production schedules that align with manufacturing capabilities and material availability.
• Monitor schedule adherence and proactively adjust plans to address changes in demand, supply disruptions, or capacity limitations.
• Balance inventory levels, service targets, and production efficiency through effective schedule management.
• Actively participate in the SIOP process by providing supply planning inputs, capacity analysis, and scenario modeling.
• Collaborate with Demand Planning, Procurement, and Operations to ensure alignment between forecasts, supply plans, and inventory strategies.
• Identify and communicate risks and opportunities related to capacity, materials, and service levels.
• Evaluate production capacity and constraints and recommend adjustments to optimize throughput and meet customer requirements.
• Coordinate with Procurement and Materials Planning teams to ensure timely availability of raw materials and components.
• Support inventory optimization initiatives, including safety stock strategies and reduction of excess and obsolete inventory.
• Maintain accurate planning parameters, lead times, and scheduling data within ERP systems.
• Ensure data integrity to support effective master production schedule (MPS) and material requirements planning (MRP) execution.
• Leverage ERP and related system tools to improve automation, planning accuracy, and visibility.
• Track and report key performance indicators such as schedule adherence, on-time delivery, capacity utilization, and inventory performance.
• Analyze planning and scheduling data to identify trends, root causes, and opportunities for improvement.
• Prepare reports and dashboards for leadership review and decision-making.
• Lead or support continuous improvement initiatives focused on planning accuracy, lead-time reduction, and operational efficiency.
• Collaborate with Manufacturing, Quality, Engineering, and Supply Chain teams to resolve scheduling conflicts and improve workflow.
• Ensure compliance with quality and regulatory standards, including FDA and ISO requirements.
• Provide guidance and support to supply planners and scheduling personnel.
• Serve as a subject matter expert for scheduling processes and ERP planning tools.
• Assist in training and onboarding new team members.

Additional Skills & Qualifications:

• Strong understanding of master scheduling, MRP, and production planning principles.
• Advanced analytical and problem-solving skills with the ability to interpret complex data sets.
• Excellent organizational and time management skills in a dynamic environment.
• Strong communication and interpersonal skills to support effective cross-functional collaboration.
• Proficiency with ERP systems
• Advanced Microsoft Excel skills for data analysis, reporting, and scenario modeling.
• 57 years of experience in production planning, master scheduling, or supply chain planning.
• Experience working in a manufacturing environment.
• Bachelor's degree in Supply Chain, Operations Management, Business, or a related field.
• Experience in a regulated manufacturing environment is preferred.
• APICS / ASCM CPIM or an equivalent professional certification is preferred.
• Demonstrated ability to support SIOP processes and cross-functional planning.
• Experience leading or supporting continuous improvement initiatives related to planning and scheduling.
• Comfort working with KPIs, dashboards, and data-driven decision-making.
• Ability to mentor and support junior planners and scheduling personnel.

Benefits:

• Great benefits package
• Work life balance
• Clear career growth path

Work Environment:

This role operates in a combined office and manufacturing shop environment, providing regular interaction with Demand Planning, Procurement, Operations, Manufacturing, Quality, Engineering, and Supply Chain teams. The position follows a Monday through Friday schedule, typically from 8:00 a.m. to 5:00 p.m. The Master Production Scheduler reports to the Supply Chain Manager and works extensively with ERP systems and Microsoft Office tools, particularly Excel, to manage data and schedules. The work setting emphasizes collaboration, continuous improvement, and alignment across functions to support effective planning and execution. The dress code is business casual.

Job Type & Location:

This is a Permanent position based out of Allentown, PA.

Pay and Benefits:

The pay range for this position is $90,000.00 - $105,000.00/yr. The company offers a full benefits package.

Workplace Type:

This is a fully onsite position in Allentown, PA.

Application Deadline:

This position is anticipated to close on Jun 19, 2026.