Accounts Payable Specialist (Onsite)

System One; Pittsburgh (Allegheny County); On-site; USD 24,796 - 35,817; Part time

Job summary

System One in Pittsburgh, PA is seeking an Accounts Payable Clerk for a contract engagement onsite. The role focuses on timely processing of payables, vendor inquiries, and manual check issuance within weekly cycles.

The candidate will manage the AP inbox, perform reconciliations, and support ACH payment runs while upholding internal controls and confidentiality. A strong Excel skillset and attention to detail are essential.

Qualifications

• High school diploma or GED required; associate degree preferred.
• Experience with AP or general accounting is a plus.
• Proficient in Excel and Microsoft Office applications.
• Strong organizational and time-management skills.
• Ability to analyze invoices and reconcile supplier accounts while maintaining confidentiality.

Responsibilities

• Monitor the Accounts Payable shared inbox and ensure inquiries from third-party suppliers and internal partners are researched and responded to within 72 hours.
• Route inquiries to the AP Accountant when additional review or action is required.
• Perform supplier account reconciliations and resolve discrepancies.
• Prepare and issue manual checks on a weekly basis.
• Support the review and approval process for ACH payment runs.
• Follow up with suppliers regarding debit balances to support working-capital improvement.
• Maintain documentation and records per AP procedures and internal controls.
• Perform other AP-related duties as assigned.

Skills

Invoice processing

Account reconciliation

Excel

Time management

Communication skills

Attention to detail

Education

High school diploma or GED

Associate degree in Business, Accounting, Finance, or related field

Tools

Microsoft Office

Job description

System One in Pittsburgh, PA is seeking an Accounts Payable Clerk for a contract engagement onsite. The role focuses on timely processing of payables, vendor inquiries, and manual check issuance within weekly cycles.

The candidate will manage the AP inbox, perform reconciliations, and support ACH payment runs while upholding internal controls and confidentiality. A strong Excel skillset and attention to detail are essential.