Accounts Payable Administrator
Winonics • Brea, CA • Full Time • $23–$30 / hour
Posted on Sat, Sep 5, 2026
The Accounts Payable Administrator is responsible for managing day-to-day accounts payable activities within a fast-paced manufacturing environment. This position plays a key role in ensuring vendor invoices, purchase orders, receiving records, and payments are processed accurately and timely.
The ideal candidate brings strong Accounts Payable experience within a manufacturing environment and has a solid understanding of purchase orders, receiving processes, inventory and material purchases, three-way matching, and vendor account reconciliation. This role works closely with Purchasing, Receiving, Operations, and Accounting to research and resolve discrepancies and maintain accurate financial records.
Duties & Responsibilities
- Manage full-cycle Accounts Payable, including invoice processing, coding, approvals, three-way matching, and vendor payments.
- Process high-volume manufacturing invoices for raw materials, components, freight, supplies, equipment, and outside services.
- Research and resolve PO, receiving, pricing, quantity, and invoice discrepancies.
- Partner with Purchasing, Receiving, Operations, and vendors to resolve AP issues and maintain accurate vendor accounts.
- Reconcile vendor statements, corporate credit cards, and assigned accounts.
- Process employee expense reports and maintain documentation for accruals, prepaids, and fixed assets.
- Support month-end/year-end close, including AP reconciliations, accruals, and supporting schedules.
- Maintain W-9 documentation and support annual 1099 processing.
- Maintain accurate AP records and provide documentation for internal and external audits.
- Serve as backup for Accounts Receivable and support process improvements and special projects as needed.
Qualifications
- Minimum 3 years of Accounts Payable experience in a manufacturing environment required.
- Strong full-cycle AP experience, including PO-based invoices, three-way matching, vendor reconciliation, and payment processing.
- Working knowledge of manufacturing purchasing and receiving processes, including raw materials, components, freight, and outside processing.
- Experience researching and resolving PO, receiving, pricing, and invoice discrepancies.
- Manufacturing ERP experience required; Sage 100 highly preferred.
- Intermediate Excel skills, including VLOOKUP/XLOOKUP, pivot tables, and data analysis.
- Working knowledge of GL coding, accruals, prepaids, account reconciliations, and month-end close.
- Strong attention to detail, organization, communication, and problem-solving skills.
- Ability to manage a high volume of transactions and meet deadlines in a fast-paced manufacturing environment.
- Associate degree in Accounting, Finance, Business Administration, or related field preferred; equivalent relevant experience considered.
Preferred Experience
- Experience in PCB, electronics, manufacturing, aerospace, defense, or another complex manufacturing environment.
- Experience working with high-volume purchasing and a large supplier/vendor base.
- Familiarity with electronic components, raw materials, outside processing, freight, and manufacturing supply-chain transactions.
- Experience supporting month-end close and financial audits in a manufacturing organization.
- Sage 100 or similar manufacturing ERP experience.
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