Strategic Master Scheduler – Production Planning

Core Systems; Poway (CA); On-site; USD 75,000 - 105,000; Full time

Benefits offered by this job

Medical package

Dental insurance

Vision

Life insurance

401(k)

Paid time off

Paid holidays

On-site fitness center

Casual work environment

Job summary

Core Systems seeks a Senior Production Planner to own the master production schedule for a California facility in Poway. You will coordinate demand, material availability, and capacity to meet commitments across operations, purchasing, and commercial teams.

The role demands 7+ years in production planning, strong ERP/MRP experience (SAP/Oracle/MS Dynamics/Epicor), and expertise in BOMs, lead times, and MS Excel. A CPIM/CSCP or Lean Six Sigma background is highly preferred.

Qualifications

• Minimum 7 years of experience in production planning or master scheduling within a manufacturing environment.
• Proficiency with ERP and MRP systems (SAP / Oracle / MS Dynamics / Epicor preferred) with understanding of system logic and limitations.
• Knowledge of bills of materials, routings, lead times, and finite capacity planning.
• Advanced proficiency in Microsoft Excel and analysis of large data sets.
• Proven ability to maintain schedule integrity during disruptions and communicate when commitments exceed capacity.
• Strong written and verbal communication with commercial and operational stakeholders.

Responsibilities

• Own the master production schedule across production lines, including establishment, publication, and change control.
• Release and prioritize orders, sequence production, and defer orders within capacity and service levels.
• Define inventory policy (safety stock, reorder points, lot sizing) balancing service levels and working capital.
• Represent the supply position in the S&OP cycle and assess what the facility can commit to.
• Track schedule adherence and plan-versus-actual performance; perform root cause analysis and corrective actions.
• Manage production sequencing for engineering changes, new products, and phase-outs.
• Execute MRP cycles, review exceptions, and convert planned orders into released work orders.
• Identify capacity constraints and material shortages in advance and coordinate with purchasing.
• Negotiate delivery dates with commercial org and escalate when commitments exceed capacity.
• Report on schedule adherence, on-time delivery, and inventory turnover weekly.
• Improve planning parameters, master data accuracy, and ERP practices.

Skills

ERP/MRP

Bills of Materials

Excel

Communication

Education

APICS CPIM or CSCP certification

Lean Six Sigma training

Tools

SQL

Power BI

Job description

Core Systems seeks a Senior Production Planner to own the master production schedule for a California facility in Poway. You will coordinate demand, material availability, and capacity to meet commitments across operations, purchasing, and commercial teams.

The role demands 7+ years in production planning, strong ERP/MRP experience (SAP/Oracle/MS Dynamics/Epicor), and expertise in BOMs, lead times, and MS Excel. A CPIM/CSCP or Lean Six Sigma background is highly preferred.