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AP​/AR Administrative Assistant; Part-Time | St. Louis, MO

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Express Employment Professionals
Part Time position
Listed on 2026-06-27
Job specializations:
  • Administrative/Clerical
    Bookkeeper/ Accounting Clerk, Office Administrator/ Coordinator
  • Accounting
    Accounts Receivable/ Collections, Bookkeeper/ Accounting Clerk, Accounting Assistant, Office Administrator/ Coordinator
Salary/Wage Range or Industry Benchmark: 27552 - 34440 USD Yearly USD 27552.00 34440.00 YEAR
Job Description & How to Apply Below
Position: AP/AR Administrative Assistant (Part-Time) | St. Louis, MO
Location: St. Louis

Position Summary

We are seeking a detail-oriented Part-Time AP/AR Administrative Assistant to support daily accounting and office operations. This role will primarily focus on accounts payable, accounts receivable, invoice processing, filing, and general administrative support within a fast-paced office environment.

This position is expected to start at approximately 3 days per week, with potential to increase to 4 days depending on workload and business needs.

Key Responsibilities
  • Process Accounts Payable and Accounts Receivable transactions
  • Enter, review, and maintain invoice records accurately
  • Handle cash receipt processing and payment documentation
  • Maintain organized filing systems and financial records
  • Assist with invoice reconciliation and general accounting support tasks
  • Support daily office administrative functions as needed
  • Work within ERP/accounting systems to track and process transactions
  • Communicate professionally with internal staff regarding payment and invoice matters
  • Assist with ongoing process improvements and administrative workflow support
Qualifications
  • Previous AP/AR or accounting administrative experience preferred
  • Experience working with invoices, cash receipts, and financial documentation
  • General ERP or accounting software experience required
  • Strong attention to detail and organizational skills
  • Comfortable working in a fast-paced office environment
  • Ability to learn new systems and processes quickly
  • Strong communication and reliability
Preferred Experience
  • ERP system experience such as Open Accounts, Net Suite, Quick Books, or similar platforms
  • Prior experience supporting accounting or administrative departments
  • Experience processing moderate-to-high invoice volume environments
Schedule
  • Approximately 24-32 hours per week
  • Expected schedule of 3-4 days weekly
  • Potential for long-term opportunity depending on business needs
Benefits of working with Express
  • Weekly pay and immediate benefits
  • Evaluation to Direct Hire Positions - get your foot in the door at a great company!
  • Personalized job matching & interview prep
  • No fees for you, ever!
  • Quick hiring process
  • Referral Bonuses

Location:

St. Louis, MO

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