Materials Manager

Professional Plastics, Inc.; Chino (CA); On-site; USD 78,000 - 110,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) plan with company match

Paid time off

Flexible Spending Account (FSA)

DailyPay earned wage access

Job summary

Professional Plastics, Inc. is seeking a proactive Materials Manager to oversee purchasing, inventory control, material planning, and supplier coordination for aerospace and plastic fabrication operations.

You will ensure materials and outside services meet production schedules and customer delivery commitments, manage NetStock-based planning, OSS and VMI coordination, and maintain accurate inventory records.

Qualifications

• High School Diploma or equivalent required.
• 1–3 years of experience in a purchasing role.
• Proficiency in Microsoft Office Suite, including Word, Outlook, Excel and specialized inventory management or ERP systems.
• Experience in purchasing, materials management, inventory control, or supply chain in manufacturing.
• Experience supporting aerospace manufacturing, plastic fabrication, or related operations.
• Strong understanding of inventory planning, reorder points, safety stock, and long supplier lead times.

Responsibilities

• Procure raw materials, stock, adhesives, coatings, hardware, and production supplies.
• Monitor lead times and place purchase orders to prevent shortages.
• Manage NetStock inventory planning and replenishment.
• Track shelf-life, FEFO, and ensure traceability.
• Coordinate outside processing (OSP) orders and VMI activities.
• Communicate material availability and risks to teams.

Skills

Purchasing

Inventory management

Supply chain

ERP systems

Manufacturing experience

Education

Bachelor’s Degree

Tools

ERP software

NetStock

MS Excel

Job description

Now Hiring: Materials Manager

Full Time Opportunity: Monday-Friday 7:00am-4:00pm

Build your skills. Make precision parts. Grow with us.

Professional Plastics is seeking a proactive, detail-oriented Materials Manager to oversee purchasing, inventory control, material planning, and supplier coordination for our aerospace and plastic fabrication operations.

This position is responsible for ensuring materials and outside services are available to meet production schedules and customer delivery commitments. The Materials Manager will manage inventory planning through NetStock, oversee long-lead-time purchasing, control shelf-life-sensitive materials, coordinate Outside Service Processing (OSP) orders, and manage Vendor-Managed Inventory (VMI).

The ideal candidate has extensive experience in manufacturing purchasing and inventory management, along with a proven ability to anticipate material requirements, prevent shortages, and maintain accurate inventory and purchasing records.

WHAT YOU'LL DO

Your work will include the following, as well as other duties that may be assigned:

• Purchasing and Supplier Management
  • Manage the procurement of raw materials, plastic sheet stock, adhesives, coatings, hardware, and production supplies.
  • Review production requirements, inventory levels, and lead times to place purchase orders proactively and prevent material shortages.
  • Obtain and evaluate supplier quotations, negotiate pricing when appropriate, and maintain strong supplier relationships.
  • Monitor open purchase orders, expedite late deliveries, and resolve supplier issues promptly.
  • Communicate material availability, delivery risks, and purchasing priorities clearly to management and production teams.
• Inventory Management and NetStock
  • Manage inventory planning and replenishment through NetStock, reviewing demand forecasts, reorder points, safety stock, and purchasing recommendations.
  • Maintain optimal inventory levels to support production while minimizing excess, obsolete, and slow-moving (EOSM) materials.
  • Coordinate purchasing with production schedules, historical usage, and lead times—particularly for long-lead-time items.
  • Maintain inventory accuracy through cycle counts, physical inventories, and thorough discrepancy investigations.
  • Monitor incoming materials, open purchase orders, and potential shortages, adjusting inventory parameters as needed.
• Shelf Life Controlled Materials
  • Track expiration dates, lot numbers, and storage requirements for shelf-life-sensitive materials.
  • Enforce First-Expired, First-Out (FEFO) practices to ensure materials are used within their approved shelf life.
  • Identify and segregate expired or nonconforming materials to prevent unintended use.
  • Coordinate timely replenishment while maintaining required traceability and documentation in collaboration with Quality.
• Outside Processing (OSP)
  • Manage OSP orders from purchase order issuance through supplier processing, return, and receipt.
  • Coordinate requirements, specifications, documentation, and delivery dates with approved OSP vendors and internal departments.
  • Track order status, expedite delayed jobs, and verify that required certifications and processing documentation are received.
  • Communicate OSP delays or supplier issues that could impact production schedules or customer deliveries.
• Vendor Managed Inventory (VMI) – BASN
  • Coordinate the Manufacturing BASN Vendor Managed Inventory (VMI) program and related supplier replenishment activities.
  • Monitor inventory levels, consumption rates, replenishment cycles, and discrepancies to maintain optimal material availability.
  • Collaborate with suppliers and internal departments to resolve stock shortages, delivery issues, and inventory variances.
  • Maintain accurate program records while identifying opportunities to improve replenishment reliability and inventory performance.
• Cross Functional Coordination and Continuous Improvement
  • Collaborate closely with Production, Scheduling, Quality, Engineering, and Shipping and Receiving to ensure total material readiness.
  • Maintain accurate purchasing, inventory, Outside Service Processing (OSP), and material traceability records across NetStock and other internal systems.
  • Generate comprehensive reports on inventory levels, shortages, supplier delivery performance, open purchase orders, OSP status, and shelf-life expirations.
  • Support all applicable quality system requirements, customer audits, and internal audits.
  • Identify strategic opportunities to improve purchasing processes, inventory accuracy, supplier performance, and material availability.

Travel: Infrequent local or regional travel to nearby client sites, branch offices, or events.

WHAT YOU'LL BRING

Required qualifications

• High School Diploma or equivalent required.
• 1–3 years of experience in a purchasing role required.
• Proficiency in Microsoft Office Suite, including Word, Outlook, Excel and specialized inventory management or ERP systems.
• Proven experience in purchasing, materials management, inventory control, or supply chain management within a manufacturing environment.
• Demonstrated experience supporting aerospace manufacturing, plastic fabrication, or related manufacturing operations.
• Strong understanding of inventory planning, reorder points, safety stock, and long supplier lead times.

Preferred qualification

• Bachelor’s Degree from an accredited university preferred.
• Prior experience managing Outside Service Processing (OSP) orders, subcontract processing, and supplier deliveries preferred.

BENEFITS THAT SUPPORT YOU

We believe a great opportunity includes more than just a paycheck. Our benefits package offers resources to support your health, financial well-being, and life outside of work.

Health & Wellness

• Medical, dental, and vision insurance
• Flexible Spending Account (FSA)
• Employee Assistance Program
• Basic Life and AD&D insurance
• Voluntary Life Insurance
• Short-Term and Long-Term Disability
• Accident, Critical Illness, and Hospital Indemnity coverage
• United Pet Care discount program

Financial Well-Being

• 401(k) plan with company match
• DailyPay Earned Wage Access
• Morgan Stanley financial advice

Time Off & Additional Perks

• Paid Time Off (PTO)
• Paid holidays
• MetLife Legal Plan
• Norton LifeLock
• LifeMart employee discounts

THE WORK & PHYSICAL REQUIREMENTS

This is an active, hands-on manufacturing role. The position frequently involves standing, walking, reaching, and communicating, with occasional sitting, stooping, kneeling, crouching, or crawling.

• Occasionally required to stand, walk, sit, reach with hands/arms, and lift/and/or move up to 25 pounds.
• Work in a moderate production environment.
• Frequently required to type, use telephonic devices, exposed to office equipment and view data on computer screen.

Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions of the position.

READY TO JOIN OUR TEAM?

If you're a dependable, detail-oriented Materials Manager who values precision and quality, we'd like to hear from you.

Equal Opportunity Employer — Disability/Veteran