E-Invoicing Specialist - 3+ Months - Mostly Remote - ASAP

For our international client, we are looking for an experienced E-Invoicing Support Specialist. Your main task is to investigate, resolve, and coordinate the correction of incoming and outgoing e-invoicing issues, ensuring compliant and successful invoice processing across the business landscape. Tasks: Resolve failed, rejected, duplicate, and incorrect e-invoices Investigate XML, XRechnung, ZUGFeRD, and EN 16931 validation issues Perform root cause analysis across SAP, mappings, interfaces, workflows, and master data Coordinate fixes with Finance, technical teams, suppliers, and customers Reprocess invoices and validate successful processing Document issues, resolutions, and support O2C invoice-related incidents Requirements: Deep understanding of Rossum and ideally also COUPA Strong experience in E-Invoicing, Application Support, or Invoice Processing Strong knowledge of XML invoicing, XRechnung, ZUGFeRD, and EN 16931 Deep understanding in invoices, to understand the Business side and errors which are potentially created Desirable: SAP experience (Finance, Invoice Management, or Integration) Strong troubleshooting, incident management, and communication skills Project Details: Start: ASAP Duration: 3 months (extension possible) Workload: 5 days/week Location: Mostly remote Language: English Interviews can be arranged at short notice with an immediate decision thereafter.