Sr. Fab Planner

Lumentum • San Jose, CA

5h

About The Position

The Senior Fab Planner develops and manages production plans, schedules, and the capacity model for a fast-paced III-V semiconductor wafer fab. The role translates customer demand into production plans, oversees work-in-progress flow, and identifies constraints that affect throughput and cycle time. The planner works across business and technical teams to coordinate production, demand changes, interruptions, and inventory, while tracking performance and driving improvements.

Requirements

• Bachelor’s or master’s degree in industrial engineering, supply chain management, operations management, or a related field.
• More than 6 years of work experience in factory planning, production scheduling, or supply chain management.
• Knowledge of semiconductor manufacturing processes and supply chain principles.
• Experience with production planning, capacity modeling, demand forecasting, WIP management, or inventory planning.
• Proficiency in Excel for data management, analysis, and reporting.
• Experience with Oracle systems.
• Attention to detail.
• Strong analytical and problem-solving abilities.
• Excellent communication and collaboration skills.
• Ability to work in a fast-paced, dynamic, and multidisciplinary environment.

Nice To Haves

• Familiarity with fab scheduling, wafer lot dispatch, and cycle-time management.
• Programming skills.

Responsibilities

• Create and manage the master production schedule, translating customer demand into daily and weekly wafer start plans.
• Monitor and track work-in-progress (WIP) flow within the fab to ensure efficient movement of wafer lots and meet output plans and customer demand.
• Develop, maintain, and improve the fab capacity model using demand, product mix, process routings, equipment capacity, operating assumptions, and other constraints.
• Identify, analyze, and resolve production bottlenecks related to equipment performance, material availability, or labor resources to maximize throughput and reduce cycle time.
• Collaborate with marketing, sales, production, and engineering teams to align production plans, manage demand or order changes, and schedule interruptions.
• Coordinate with purchasing teams to maintain optimal stock levels and prevent shortages or excess inventory materials.
• Track KPIs, including on-time delivery (OTD), cycle time, inventory, and inventory turns.
• Drive continuous improvement initiatives to enhance planning efficiency, optimize processes, and increase productivity.

Benefits

• The company may offer annual bonus, commission for certain sales roles, equity, and health and welfare benefits as part of its total compensation packages.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior