Billing Specialist

About This Role

As a Billing Specialist, you will play a key role in ensuring that our supplier billing processes run accurately, efficiently, and on time. You will manage the entire billing process, from collecting and registering purchase orders to processing invoices, handling self-billing credit notes, and registering pre-invoicing disputes. Collaborating with various teams, you will help translate commercial agreements into accurate invoicing instructions and resolve discrepancies to meet our quality standards and deadlines.

Responsibilities

• Manage purchase orders: Collect, validate, and register purchase orders, proactively follow up on missing or incorrect information, and ensure everything is ready before invoicing deadlines.
• Coordinate invoicing workflows: Manage and monitor invoicing processes in Contract Master and GKM, ensuring agreements, purchase orders, approvals, and invoicing instructions are complete and accurate.
• Process invoices and credit notes: Prepare, review, and register supplier invoices, corrections, cancellations, rebilling, and self-billing credit notes in SAP and relevant systems.
• Handle pre-invoicing disputes: Register incoming disputes, investigate discrepancies, coordinate follow-up actions with the responsible teams, and monitor outstanding cases until resolution.
• Support Month-End Closing: Ensure assigned billing activities are completed accurately and on time, contributing to reliable financial reporting and a smooth monthly closing process.
• Monitor and resolve discrepancies: Identify missing information, blocked workflows, and inconsistencies across systems, and work with internal stakeholders to find solutions.
• Maintain accurate records: Ensure supporting documentation is complete, system registrations are correct, and all activities have a clear audit trail.
• Drive continuous improvement: Identify recurring issues, contribute to backlog reduction, and help improve the efficiency, consistency, and quality of our billing processes.

Requirements

• An MBO+ or HBO-level qualification in Finance, Business Administration, Accountancy, Commercial Economics, or a related field.
• 2–5 years of relevant experience in billing, accounts receivable, purchase-order management, financial operations, or a similar role.
• A solid understanding of invoicing processes, purchase orders, commercial agreements, and financial administration.
• Experience with invoice workflows, credit notes, reconciliations, and resolving discrepancies or disputes.
• Experience with ERP systems, preferably SAP.
• Strong Excel skills, including working with large datasets, lookups, pivot tables, and reconciliations.
• An understanding of Month-End Closing, internal controls, and financial documentation requirements.
• Excellent communication skills in English and the ability to work effectively with both internal stakeholders and external suppliers.