Accounts Payable Clerk

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

Job Title: Accounts Payable Clerk
Location: Pittsburgh, PA
Type: Contract
Compensation: $18.00 - $26.00
Work Model: Onsite – onsite

Responsibilities

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

Requirements

• High school diploma or GED required; Associate degree in Business, Accounting, Finance, or a related field preferred.
• Previous Accounts Payable or general accounting experience preferred.
• Experience with invoice processing, supplier account reconciliation, or payment processing is an asset.
• Familiarity with high-volume, multi-entity Accounts Payable environments preferred.
• Intermediate proficiency in Microsoft Excel and working knowledge of other Microsoft Office applications.
• Strong organizational and time-management skills.
• High degree of accuracy and attention to detail.
• Ability to analyze invoices, reconcile supplier accounts, and identify discrepancies.
• Strong verbal, written, and interpersonal communication skills.
• Self-motivated and able to work independently while collaborating effectively within a team.
• Ability to handle confidential and sensitive company, supplier, and personnel information with appropriate discretion.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.