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Accounts Payable Specialist​/Office Administrator

Job in Seattle, King County, Washington, 98127, USA
Listing for: Matrix Finance and Accounting
Full Time position
Listed on 2026-06-03
Job specializations:
  • Administrative/Clerical
    Office Administrator/ Coordinator
  • Accounting
    Office Administrator/ Coordinator, Accounts Receivable/ Collections
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Position: Accounts Payable Specialist / Office Administrator

Overview

We are seeking a dependable and detail-oriented Accounts Payable Specialist / Office Administrator to join our growing team. This role is ideal for someone who enjoys balancing accounting responsibilities with day-to-day office support and customer interaction. The ideal candidate will have strong organizational skills, experience processing high-volume accounts payable, and the ability to provide excellent customer service while managing inbound service calls and collections activities.

This position plays a key role in supporting accounting operations, maintaining vendor relationships, assisting customers, and ensuring the office runs efficiently.

Key Responsibilities Accounts Payable
  • Process high-volume vendor invoices accurately and efficiently
  • Match invoices to purchase orders and verify coding approvals
  • Prepare and process ACH, wire, and check payments
  • Reconcile vendor statements and resolve discrepancies
  • Maintain accurate vendor files including W-9s and payment information
  • Assist with month-end close and AP reporting
  • Support 1099 preparation and compliance processes
Office Administration
  • Answer and route inbound service and customer calls professionally
  • Provide administrative support to leadership and operations teams
  • Maintain office supplies, filing systems, and general office organization
  • Coordinate incoming mail, emails, and office communications
  • Assist with scheduling, document management, and data entry
  • Support special projects and operational initiatives as needed
Collections & Customer Support
  • Follow up with customers regarding outstanding invoices and past-due balances
  • Maintain positive customer relationships while resolving payment issues
  • Document collection efforts and payment arrangements
  • Collaborate with accounting and operations teams to resolve billing discrepancies
  • Assist with account reconciliations and aging reports
Qualifications
  • 2+ years of Accounts Payable or accounting support experience
  • Previous administrative or office support experience preferred
  • Strong communication and customer service skills
  • Collections or accounts receivable follow-up experience is a plus
  • Proficiency in Microsoft Excel and accounting software/ERP systems
  • Highly organized with strong attention to detail
  • Ability to multitask and prioritize in a fast-paced environment
  • Professional demeanor and positive attitude
Preferred Skills
  • Experience with ERP systems such as Quick Books, Sage, Net Suite, or similar platforms
  • Acumatica is strongly preferred
  • Strong Excel skills including sorting, filtering, and basic formulas
  • Ability to handle confidential information with discretion
  • Experience supporting small to mid-sized business operations
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