Master Scheduler

Perfect Timing Personnel Services; Hayward (CA); On-site; USD 90,000 - 120,000; Full time

Job summary

Perfect Timing Personnel Services is looking for a Master Scheduler/Planning Manager based in Hayward, CA. This role is pivotal in managing production planning and scheduling in a high-mix, low-volume manufacturing environment for the semiconductor industry.

The ideal candidate has 5-7 years of relevant experience, strong skills in MRP systems, and a proven track record in capacity planning and leadership of planning teams.

Qualifications

• 5-7+ years in production planning or master scheduling.
• Proven experience in MRP implementation and capacity planning.
• Experience leading planners or production control teams.

Responsibilities

• Own the end-to-end master schedule.
• Lead a team of planners/production control personnel.
• Implement and maintain MRP and scheduling systems.

Skills

Production planning

Master scheduling

ERP systems

Analytical skills

Leadership

Education

Bachelor’s degree in Supply Chain, Operations Management, Business, or Engineering

APICS CPIM certification

Tools

Epicor

Advanced Excel

Job description

Title: Master Scheduler/Planning Manager

Location: Hayward, CA (On-site)

POSITION SUMMARY

We are seeking a high-impact Master Scheduler / Planning Manager to take full ownership of production planning and scheduling across a complex, high-mix, low-volume and quick turn manufacturing environment serving the semiconductor industry.

This is not a maintenance role—this is a build-and-transform role.

You will be responsible for:

• Owning the end-to-end master schedule
• Leading a team of 4–7 planners/production control personnel
• Driving the transition from reactive dispatching to disciplined, capacity-driven scheduling
• Implementing and maintaining MRP, finite scheduling, Advance Planning Module and planning rigor within Epicor

You will operate as the single source of truth for the production schedule, with authority to balance demand vs capacity and reschedule in/out on commitments when needed.

KEY RESPONSIBILITIES

Own the Master Schedule

• Develop and control the end-to-end production schedule
• Set clear priorities for the shop floor (executed by supervisors)
• Ensure alignment between demand, capacity, and execution

Lead Planning Team

• Manage and develop 4–7 planners / production control staff
• Standardize processes and eliminate reactive firefighting
• Drive accountability and planning discipline
• Define true capacity by work center
• Identify and manage bottlenecks
• Transition from dispatching chaos to finite, realistic scheduling

MRP & System Implementation (Epicor)

• Lead MRP rollout and adoption
• Improve data integrity (BOMs, routing, lead times, WIP accuracy)
• Shift planning from manual to system driven

Demand & Internal Customer Alignment

• Own feasible commit dates
• Recommend solutions on overload conditions with data
• Partner with Customer Service, Program, and Account teams to reset expectations
• Prioritize plannable (recurring) business at 70–75% of revenue while maintaining flexibility for quick-turn and spot buy orders
• Participate in bi-weekly production meetings
• Provide supply plan in monthly S&OP
• Consolidate all demand streams (sales orders, transfer orders, consignment) into a single supply plan
• Run what-if capacity scenarios in Epicor before committing to the monthly build plan
• Present actual vs. plan performance in monthly S&OP review; elevate gaps to leadership with recommended solutions
• Reduce past-due backlog, schedule churn, and expediting
• Improve schedule adherence and control flow

Qualifications

Experience

• 5-7+ years in production planning / master scheduling
• Proven experience in MRP implementation, capacity planning
• Experience leading planners or production control teams
• Background in high-mix manufacturing (semiconductor preferred)

Technical

• Strong ERP experience (Epicor strongly preferred)
• Strong MRP, BOM, routing, and capacity modeling knowledge
• Advanced Excel
• Familiarity with Epicor forecast consumption, demand class configuration, and capacity requirements planning (CRP)

Education & Certifications

• Bachelor’s degree in Supply Chain, Operations Management, Business, or Engineering preferred
• APICS CPIM certification is a strong plus — demonstrates formal planning and scheduling discipline

Leadership

• Comfortable challenging demand and pushing back with data
• Structured, disciplined, and process-driven
• Able to turn chaos into controlled execution
• Strong cross-functional communication

Core Competencies

• Strong analytical and problem-solving skills with attention to detail
• Excellent organizational and time management abilities
• Ability to work under pressure and manage competing priorities
• Strong communication skills (written and verbal) across all organizational levels
• Collaborative team player with ability to influence without direct authority
• Proactive mindset with ability to anticipate issues and develop contingency plans
• Flexibility to adapt to changing priorities and production demands