Senior Wafer Fab Planner – InP Photonics

Sierra Wireless; Alhambra (CA); On-site; USD 82,000 - 117,000; Full time

Job summary

Sierra Wireless in Alhambra, CA is seeking a Senior Wafer Fab Planner to drive production planning and scheduling for epitaxy and wafer fabrication across two Southern California sites.

You will translate die demand into wafer starts, balance fab capacity, manage WIP, and ensure timely availability of tested die to support downstream delivery requirements. Strong ERP/MRP and Excel skills are essential.

Qualifications

• Bachelor's degree in Engineering, Supply Chain, Operations Management, Industrial Engineering, Business, or related discipline.
• 5+ years of production planning experience in semiconductor manufacturing.
• Strong understanding of capacity planning, production scheduling, inventory management, and demand planning.
• Experience with ERP/MRP systems and advanced Microsoft Excel skills.
• Excellent analytical, communication, and organizational skills.

Responsibilities

• Develop and maintain master production plans for InP wafer fabrication operations across two manufacturing sites
• Translate customer and business demand into wafer start requirements
• Generate weekly, monthly, and quarterly production schedules
• Plan production loading across approximately five epitaxial growth tools and downstream wafer fabrication operations
• Perform capacity analysis and identify bottlenecks impacting delivery performance
• Monitor wafer movement, WIP health, aging lots, and cycle time
• Maintain die supply plans based on forecast, inventory, yield assumptions, and manufacturing cycle times
• Partner with Operations, Engineering, Yield Engineering, and Supply Chain teams to resolve risks and drive execution, and develop dashboards and reports for wafer starts, WIP, cycle time, capacity utilization, die inventory, and forecast accuracy

Skills

Production planning

Capacity planning

Production scheduling

Inventory management

Demand planning

Analytical

Communication

Organizational skills

Education

Bachelor's degree in Engineering/related

Tools

ERP/MRP systems

Microsoft Excel

Job description

Sierra Wireless in Alhambra, CA is seeking a Senior Wafer Fab Planner to drive production planning and scheduling for epitaxy and wafer fabrication across two Southern California sites.

You will translate die demand into wafer starts, balance fab capacity, manage WIP, and ensure timely availability of tested die to support downstream delivery requirements. Strong ERP/MRP and Excel skills are essential.