Ichor Systems designs, engineers, and manufactures the fluid delivery systems and precision components used in semiconductor and other advanced-technology equipment. Our products include gas and chemical delivery systems, precision-machined and welded components, brazing and surface treatment technologies, and other proprietary products, with ­a focus on the metal and plastic parts used in gas and chemical systems. More than 3,000 employees work across our sites in the U.
S., Malaysia, Singapore, and Mexico. We are seeking a Senior Planner to lead materials and production planning in a large-scale semiconductor manufacturing environment. This role translates demand into executable production and material plans, ensuring supply continuity, balanced inventory levels, and reliable delivery performance. Working closely with suppliers and cross-functional teams, the Senior Planner anticipates constraints, resolves supply risks, and drives improvements in schedule adherence and supplier performance.

Key Responsibilities
• Develop and maintain the Master Production Schedule (MPS), aligning demand with production capacity and material availability.
• Analyze demand forecasts, capacity, and supply constraints to identify gaps and recommend planning adjustments.
• Release and monitor production and work orders in accordance with Material Requirements Planning (MRP) outputs and production priorities.
• Manage material availability and supplier delivery commitments for direct materials, metals, and components.
• Optimize inventory levels to reduce shortages, excess stock, and obsolescence while supporting production requirements.
• Identify risks related to material shortages, quality issues,



and equipment downtime; coordinate recovery plans and escalate critical constraints.
• Evaluate supplier performance, address delivery gaps, and drive corrective actions with Purchasing and Quality.
• Partner with Production, Engineering, Purchasing, Logistics, and Quality to align material readiness with manufacturing priorities.
• Facilitate planning and supply reviews, communicating schedule changes, risks, and recovery actions to stakeholders.
• Track and report key performance indicators, including on-time delivery (OTD), schedule adherence, inventory performance, and material shortages.
• Support business continuity planning, audit requirements, and internal controls.
• Provide functional guidance and mentoring to junior planners and buyers. Qualifications and Skills
• Experience in materials planning, production planning, within a manufacturing environment.
• Strong understanding of MPS, MRP, capacity planning, inventory management, and supplier performance management.
• Proficiency with ERP/MRP systems and intermediate-to-advanced Excel, including pivot tables, data analysis, and reporting.
• Strong analytical and problem-solving skills, with the ability to translate complex data into actionable plans.
• Ability to interpret technical information, demand forecasts, and operational reports.
• Clear written and verbal communication skills, with the ability to coordinate priorities across suppliers and internal teams.
• Ability to manage competing priorities and respond effectively to changing demand and supply conditions. Preferred Experience
• Experience in semiconductor manufacturing or a similarly complex, precision-driven industry.
• Experience managing critical materials, constrained supply, and supplier recovery plans.

📌 Senior Supply Chain Planner (Heroica Nogales)
🏢 Ichor Systems
📍 Heroica Nogales