AP/AR Administrative Assistant (Part-Time) | St. Louis, MO

Express Employment Professionals - Cincinnati East; St. Louis (MO); On-site; USD 25,000 - 30,000; Part time

Benefits offered by this job

Weekly pay

Benefits

Direct hire opportunities

Interview prep

Fast hiring process

Referral bonuses

Job summary

Express Employment Professionals - Cincinnati East in St. Louis, MO is seeking a detail-oriented Part-Time AP/AR Administrative Assistant to support daily accounting and office operations, focusing on accounts payable and receivable, invoicing, and filing.

The role offers 24-32 hours per week with potential to grow; you will work with ERP systems, maintain records, and assist with process improvements in a fast-paced office.

Qualifications

• AP/AR or accounting admin experience preferred.
• Experience with invoices, cash receipts, and financial docs.
• Strong attention to detail and organizational skills.
• Ability to learn new systems quickly.

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.

Skills

AP/AR experience

Invoice processing

ERP software

Tools

Open Accounts

NetSuite

QuickBooks

Job description

AP/AR Administrative Assistant (Part-Time) | St. Louis, MO

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, NetSuite, QuickBooks, 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

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