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Posted August 11, 2026

Buyer II

Roncelli Plastics
Arcadia, CA, US Full Time
26USD - 30USD per hour

Job Description

Job Description

Position Summary:

Under the general management supervision, the Buyer II coordinates activities involved with procuring raw materials, components, outside processing, equipment, tooling, production supplies, and services required to support daily manufacturing operations. The Buyer II independently manages assigned suppliers and commodities from requisition through receipt while maintaining inventory availability, supporting production schedules, and ensuring supplier performance meets company expectations.

This position collaborates closely with Production, Planning, Engineering, Quality, Warehouse, Receiving, and Accounting to ensure uninterrupted material flow, timely supplier performance, and continuous improvement of purchasing activities.

This position utilizes confidential information. Confidentiality is strictly enforced.

Essential Duties and Responsibilities:

· Independently manage assigned suppliers and commodity groups to support manufacturing operations.

· Create, review, issue, and maintain purchase orders from requisition through receipt.

· Ensure purchase orders are processed accurately and in accordance with company purchasing procedures.

· Monitor supplier acknowledgements, order status, and delivery commitments.

· Expedite supplier deliveries to prevent production interruptions and material shortages.

· Coordinate with suppliers to resolve pricing, quantity, delivery, quality, and invoice discrepancies.

· Prepare and evaluate Requests for Quotation (RFQs).

· Analyze supplier quotations considering cost, quality, lead time, delivery performance, and service.

· Recommend supplier selections based on business requirements.

· Develop and maintain professional supplier relationships.

· Monitor supplier performance including On-Time Delivery (OTD), quality, responsiveness, and cost competitiveness.

· Identify and evaluate alternate suppliers to reduce supply risk and improve continuity.

· Monitor inventory levels and support replenishment utilizing ERP recommendations, Min/Max levels, and production demand.

· Coordinate with Production, Planning, Warehouse, and Receiving to resolve material shortages and support production schedules.

· Support Engineering Change Orders (ECOs) affecting purchased materials.

· Participate in supplier corrective actions and quality improvement initiatives.

· Assist in identifying cost reduction opportunities and purchasing process improvements.

· Support Quality Management System requirements including ISO and AS9100 compliance.

· Maintain accurate purchasing records and documentation within the ERP system.

· Perform other duties as assigned.

Skills, Knowledge, and Experience:

· Associate's degree (AA) or equivalent from a two-year college or technical school in Business, Supply Chain, Operations, Engineering, or a related field is preferred.

· Three (3) to five (5) years of purchasing or procurement experience in a manufacturing environment, or an equivalent combination of education and experience.

· Aerospace or precision manufacturing experience is preferred.

· Experience utilizing ERP/MRP systems; JobBOSS experience is preferred.

· Experience managing suppliers, purchase orders, and inventory replenishment.

· Experience preparing RFQs and evaluating supplier quotations.

· Supplier negotiation and cost reduction experience preferred.

· Knowledge of purchasing and supply chain principles.

· Ability to read and interpret engineering drawings and technical documents is preferred.

· Strong Microsoft Office skills, particularly Excel.

· Excellent organizational, planning, and time management skills.

· Strong analytical and problem-solving abilities.

· Excellent verbal and written communication skills.

· Ability to prioritize multiple assignments in a fast-paced manufacturing environment.

· Ability to establish and maintain effective working relationships with suppliers and internal customers.

· Strong attention to detail and commitment to accuracy.

· Ability to maintain confidential information and exercise sound business judgment.

Physical Demands:

While performing the essential functions of the job, the employee is regularly required to engage in the activities listed below. Reasonable accommodations will be made to enable individuals with disabilities to perform the essential functions.

· Walk and/or move about the workplace.

· Stand and/or sit for prolonged periods of time.

· Bend at waist and/or knees.

· Lift and/or move objects up to 10lbs and occasionally up to 25lbs from one location to another. Assistance is available for lifting objects over 25lbs.

· Move arms, wrists, hands, and/or fingers in repetitive motions including keyboarding.

· Feel and perceive the attributes of an object, such as its size, shape, color, distance, weight, and/or texture.

· Express, perceive, and exchange thoughts, questions, and instructions, through both written and oral communication in the English language.

Work Environment:

The work is typically performed in an office environment using standard office equipment including a computer. The work is generally sedentary in nature although moving about both inside and outside of the office work areas may be required. The working environment is generally favorable. Lighting and temperature are adequate, and there are minimal hazardous or unpleasant conditions caused by noise, dust, etc.

\nCompany Description

Roncelli Plastics, an industry pioneer since 1969, as a thermoplastics and composites manufacturer headquartered in Monrovia, California. We fabricate critical parts for Commercial Space and Aerospace, Medical and Life Science, Semiconductor and Oil and Gas. Trusted by the world’s most notable brands for our leading edge technology, innovative operations, technical expertise and knowledgeable partnership.

Company Description

Roncelli Plastics, an industry pioneer since 1969, as a thermoplastics and composites manufacturer headquartered in Monrovia, California. We fabricate critical parts for Commercial Space and Aerospace, Medical and Life Science, Semiconductor and Oil and Gas. Trusted by the world’s most notable brands for our leading edge technology, innovative operations, technical expertise and knowledgeable partnership.

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