We are looking for an Accounts Payable Manager to oversee end-to-end payables operations for a long-term contract opportunity based in McLean, Virginia. This role is ideal for someone who can bring structure to a largely manual environment, maintain strong vendor relationships, and ensure accurate invoice handling across purchase order and non-purchase order transactions. The position requires a hands-on leader who is comfortable resolving payment issues, supporting process consistency, and identifying whether exceptions stem from system behavior or user input.<br><br>Responsibilities:<br>• Lead the complete accounts payable cycle, from invoice intake and coding through payment execution and record maintenance.<br>• Review and process both purchase order-backed invoices and non-PO invoices while ensuring accuracy, proper approvals, and timely completion.<br>• Manage vendor relationships by responding to inquiries, addressing payment discrepancies, and maintaining dependable communication with external partners.<br>• Oversee payment activities including check disbursements, automated clearing house transactions, and indirect payment processing.<br>• Perform vendor onboarding and update supplier records within the accounting system to support accurate and compliant payments.<br>• Work effectively in a highly manual processing environment, ensuring consistency and attention to detail despite system limitations.<br>• Monitor invoice exceptions and investigate issues to determine whether errors are caused by process gaps, data entry mistakes, or system-related problems.<br>• Support daily accounts payable operations within SAP S/4HANA and help maintain accurate transaction flow across the platform.