Sr. Accounts Payable Specialist

OSI Group•Aurora, IL

1d•Onsite

About The Position

The Senior Accounts Payable Specialist is responsible for the accurate and timely processing of vendor invoices within the ERP system, ensuring full compliance with company policies, invoice types, and approval thresholds. This role serves as a subject matter expert who assists team members with issue resolution, supports process improvements and helps drive efficiency and accuracy across the accounts payable function. This position reports to the Accounts Payable Manager and works closely with cross-functional stakeholders across plant operations and corporate teams.

Requirements

1-3 years of experience in related field is preferred.
Excellent proficiency in all Microsoft Office Suite Products.
Experience with ERP systems such as SAP (ECC or S/4HANA) and invoice processing platforms such as Basware.
Strong understanding of 2-way and 3-way matching processes, including GR/IR concepts.
Familiarity with AP controls, audit requirements, and compliance standards.
Associated Degree or equivalent work experience in corporate accounts payable function.
Ability to manage high work volumes and meet deadlines.
Strong attention to detail and accuracy.
Problem-solving mindset with the ability to identify root causes and drive resolution.
Strong basic math and reconciliation skills.
Effective communication and collaboration skills across all levels of the organization.
Ability to work cross-functionally with procurement, operations, and finance teams.
Accountability and ownership of assigned responsibilities.
Experience in a manufacturing or plant-based environment.
Exposure to invoice automation, OCR, or AI-driven AP tools.

Nice To Haves

College courses in general accounting, preferred.
Associated Degree in Accounting/Business a plus.
AP Specialist certification a plus.

Responsibilities

Job is an individual contributor and has no direct reports.
Ensure accurate invoice entry and compliance with company policies, approval workflows, and internal controls
Process invoices and check request forms using enterprise-wide accounting system.
Perform invoice reconciliations and resolve supplier credit claims and discrepancies.
Monitor and manage invoice exceptions, including price and quantity variances, and missing goods receipts
Review materials management reports to identify goods receipt/invoice receipt (GR/IR) variances (e.g., unpaid or incorrect amounts) and take action to resolve and close purchase orders.
Collaborate with buyers, receiving teams, and plant personnel to resolve 3-way match issues.
Respond to vendor and internal inquiries through the AP Help Desk (JIRA) in a timely, accurate, and professional manner.
Perform vendor statement reconciliations and proactively resolve outstanding balances and discrepancies.
Investigate and resolve disputed invoices in coordination with vendors and internal stakeholders.
Support month-end close activities, including preparing analysis, journal entries, and account reconciliations
Ensure adherence to all accounts payable policies, procedures, and standardized processes.
Identify continuous improvement opportunities and support implementation of best practices, including automation initiatives.
Provide audit support and respond to internal and external audit requests.
Create and maintain standard operating procedures (SOPs), including documentation of vendor-specific requirements and processes.
Maintain strong stakeholder relationships through professional and responsive communication.
Provide backup support for other AP functions as needed.
This role has the responsibility to understand and places in practice appropriate safety procedures. This responsibility is achieved through education, training, use of protective equipment (as applicable) and by following safety policies, regulations, standards, and laws.
Perform other duties as assigned by management.