Production Planner

Winchester Electronics Corporation; Garden Grove (CA); On-site; USD 75,000 - 90,000; Full time

Benefits offered by this job

On-site workplace

5% AIP bonus

Competitive salary

Job summary

Winchester Interconnect Corporation is seeking a Production Planner to bridge customer demand, plant operations, and procurement at our Garden Grove facility. You will create and optimize master production schedules, address bottlenecks, and drive continuous improvement in ERP/MRP workflows.

In a high-mix, regulated aerospace environment, you will anticipate conflicts, balance resources, and ensure on-time delivery while reporting to the Supply Chain Manager.

Qualifications

• Bachelor’s Degree in Supply Chain Management, Operations Management, Industrial Engineering, Business, or a related field.
• 3–5 years of direct experience in production scheduling, master planning, or material control in high-mix/high-volume manufacturing.
• Experience with AS9100 or ISO9001 quality management systems is highly desired.

Responsibilities

• Develop, maintain, and execute detailed daily/weekly production schedules for multiple lines and work centers.
• Conduct rough-cut capacity planning (RCCP) and line-level capacity analysis to balance resources against demand.
• Collaborate with Production Supervisors/Operations Managers to address schedule adherence and re-sequence orders during disruptions.
• Coordinate with Buyers/Procurement to ensure timely material arrivals aligned with start dates.
• Optimize Safety Stock, ROP, and EOQ to maintain lean inventory and minimize stockouts.
• Monitor WIP to prevent bottlenecks and optimize shop-floor flow.
• Maintain ERP/MRP master data to ensure accurate scheduling logic (lead times, BOMs, routings).
• Track KPIs like Schedule Attainment, OTIF, Inventory Turnover, and downtime due to shortages.
• Support Lean/Kaizen initiatives, automate scheduling, and standardize replenishment strategies.
• Ensure all supply chain processes comply with AS9100/ITAR and customer/regulatory requirements.

Skills

Production scheduling

Master planning

Material control

ERP/MRP proficiency

Data analysis

Lean/Kaizen

APICS/ASCM certs

Education

Bachelor’s degree in Supply Chain/related field

Tools

SAP PP/MM

Oracle SCM

Epicor

Infor

Syspro

Job description

At Winchester Interconnect, we always do the right thing, the right way.

Winchester Interconnect is committed to inspiring the most innovative teams. We foster a dynamic, inclusive environment that thrives on collaboration and continuous growth. We hire exceptional people, celebrate wins, empower employee growth, and provide opportunities to thrive. Winchester is where potential transforms into purpose, and every team member plays a vital role in shaping our shared success.

Position Summary:

As our Production Planner, you will be the vital link between customer demand, plant floor operations, and procurement. In this role, you will manage production scheduling and material flow within our Garden Grove manufacturing facility, taking responsibility for creating, optimizing, and maintaining master production schedules that maximize plant throughput and ensure on-time delivery to our customers.

Operating in a high-mix, regulated aerospace and defense environment, you will address complex capacity bottlenecks, resolve material shortages before they impact production, and drive continuous improvement within our ERP/MRP systems and planning workflows. As a senior-level contributor, you will bring strong analytical skills and crisis management agility to anticipate conflicts, balance resources, and keep operations running seamlessly.

This position reports to the Supply Chain Manager.

Qualifications & Requirements:

• Bachelor’s Degree in Supply Chain Management, Operations Management, Industrial Engineering, Business, or a related technical field.
• Must be a U.S. Person (U.S. Citizen or Permanent Resident) due to ITAR regulations.
• 3–5 years of direct experience in production scheduling, master planning, or material control in a high-mix or high-volume manufacturing plant environment.
• Experience working under AS9100 or ISO9001 quality management systems is highly desired.
• Technical proficiency with major ERP/MRP platforms (e.g., SAP PP/MM, Oracle SCM, Epicor, Infor) and scheduling software/APS tools; Syspro experience is a strong plus.
• Advanced skills in MS Excel (Power Query, Pivot Tables, Complex Formulas) or business intelligence tools (Power BI, Tableau) for capacity modeling and scenario analysis.
• APICS/ASCM certification is preferred (e.g., CPIM - Certified in Planning and Inventory Management, or CSCP - Certified Supply Chain Professional).
• Solid understanding of Lean, Kanban, Just-In-Time (JIT) material flow, and Theory of Constraints (TOC).
• Able to make rapid, data-backed decisions under pressure when unexpected material shortages, machine breakdowns, or rush orders occur.
• Excellent interpersonal skills to effectively bridge priorities between Operations, Engineering, Quality, Purchasing, and Program Management/Customer Service.
• Exceptional quantitative and problem-solving skills to anticipate schedule conflicts before they reach the factory floor.

Our core values - Accountability, Collaboration, and Empowerment (ACE) - are the foundation of how we operate and drive success. You will take ownership of your contributions, collaborate with a team that gets stuff done, and be empowered to innovate and pursue bold initiatives that drive our business forward.

Are You Our Next ACE?

• Develop, maintain, and execute detailed finite daily and weekly production schedules for multiple production lines, work centers, and assembly areas.
• Conduct rough-cut capacity planning (RCCP) and detailed line-level capacity analysis to balance labor, machinery, and material availability against sales forecasts and firm customer orders.
• Partner daily with Production Supervisors and Operations Managers to review schedule adherence, address line stoppages, and re-sequence orders dynamically when disruptions occur.
• Collaborate closely with Buyers and Procurement to ensure raw materials, components, and sub-assemblies arrive in-plant to align seamlessly with production start dates.
• Optimize Safety Stock, Reorder Points (ROP), and Economic Order Quantities (EOQ) to maintain lean inventory levels while minimizing stockouts and line downtime.
• Monitor Work-in-Progress (WIP) levels across the plant floor to prevent bottlenecks, control lead times, and optimize overall shop-floor flow.
• Maintain master data integrity (lead times, bills of materials (BOMs), routing times, batch sizes) within the ERP/MRP system to ensure accurate scheduling logic.
• Track, report, and drive improvement on core operational KPIs, including Schedule Attainment, On-Time In-Full (OTIF) delivery, Inventory Turnover, and Downtime due to material shortages.
• Support Lean/Kaizen initiatives within the planning department, automating scheduling workflows, standardizing material replenishment strategies (e.g., Kanban/Pull systems), and reducing production lead times.
• Ensure all supply chain processes and documentation comply with AS9100, ITAR, and applicable customer and regulatory requirements.
• Comply with all company policies and procedures.
• Perform other duties as assigned.

Systems You’ll Use:

• Google Workspace / SmartView / Salesforce / Planful / AwardCo

Pay Transparency:

Winchester Interconnect Corporation is committed to pay transparency. The pay range for this position is $75,000 – $90,000 per year plus 5% AIP. Exact salary will be contingent upon your experience, education, skills, and any other factors Winchester Interconnect Corporation considers relevant to the hiring decision.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities. In addition to federal law requirements, Winchester Interconnect complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.

Winchester Interconnect expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

***Candidate Inquiries Only-No Third-Parties***

Location(s)

Workplace Type

On-site

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In addition to federal law requirements, Winchester Interconnect complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.

Winchester Interconnect expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

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