Accounts Payable Specialist Job in Walnut Creek, CA

Accounts Payable Specialist

We are looking for an Accounts Payable Specialist to join a growing team in Contra Costa County. This long-term contract opportunity is ideal for someone who can manage invoice workflows, support employee reimbursement activity, and help maintain accurate vendor and payment records.

Responsibilities:

• Process supplier invoices with accuracy, confirming account coding, approvals, cost distribution, and required backup documents before entry.
• Investigate billing issues, payment exceptions, and held invoices by working with vendors and internal teams to reach resolution quickly.
• Serve as a point of contact for supplier questions related to payment timing, invoice progress, and account details.
• Maintain vendor master data, gather required onboarding and compliance documents, and reconcile supplier statements to identify open items.
• Review employee expense submissions for policy adherence, complete documentation, valid approvals, and correct accounting treatment.
• Coordinate with employees to correct incomplete expense reports and support prompt reimbursement processing.
• Organize invoices for scheduled payment cycles and assist with ACH, wire, and check disbursements while validating payment support and approvals.
• Contribute to banking and payment control activities, including positive pay procedures and other internal safeguards.
• Prepare aging, open invoice, and payment status reporting, and assist with account reconciliations and period-end close activities.