Part-time SAP Ariba Supplier Specialist

We are seeking an experienced SAP Ariba Supplier Specialist to support a confidential client engagement involving supplier invoicing, financial reconciliation, and systems integration.The ideal candidate will have strong supplier-side SAP Ariba expertise, experience with accounting system integrations, and the ability to independently assess existing workflows and recommend practical, secure solutions.Key ResponsibilitiesSAP Ariba Account AssessmentAudit existing SAP Ariba supplier accounts, users, permissions, and configurations.Review existing API clients and integration settings.Identify configuration issues, security risks, and opportunities for improvement.Recommend the appropriate Ariba account tier and invoicing approach.Invoice ReconciliationReconcile 2026 QuickBooks Online invoices against SAP Ariba records.Identify missing, rejected, duplicate, or outstanding invoices.Submit eligible invoices against valid, open purchase orders.Document discrepancies and establish repeatable reconciliation procedures.Invoicing Process OptimizationEvaluate PO flip, CSV upload, and cXML integration options.Recommend the most efficient and cost-effective solution.Configure and test the approved invoicing workflow.Systems IntegrationDesign and implement secure integrations between QuickBooks Online and SAP Ariba.Configure cXML or API connectivity, as appropriate.Implement error handling, transaction monitoring, and reconciliation reporting.Test and document all integration processes.Documentation and TrainingDevelop standard operating procedures and troubleshooting documentation.Train designated personnel on the invoicing and reconciliation processes.Deliver complete technical documentation and transfer administrative control of project-created integrations and configurations to the client.Required Qualifications3+ years of hands-on SAP Ariba Network supplier-side experience.Demonstrated experience with purchase-order-based invoicing, including blanket POs.Strong knowledge of cXML invoicing and purchase order workflows.Experience with QuickBooks Online APIs and accounting integrations.Proven ability to reconcile transactions across accounting and procurement platforms.Experience troubleshooting integration errors and invoice submission failures.Strong technical documentation and communication skills.Verifiable references from previous SAP Ariba supplier enablement projects.Important: Candidates with exclusively buyer-side SAP Ariba experience will not be considered.