End-to-End Billing Specialist — Process & Data Optimizer

MediaMarktSaturn Plattform Services GmbH; Rotterdam; On-site; EUR 40,000 - 65,000; Full time

Benefits offered by this job

Employee discount

30 vacation days

Discounted fitness memberships

Bike lease program

Insurance advantages

Job summary

MediaMarktSaturn Plattform Services GmbH in Rotterdam seeks a Billing Specialist to lead end-to-end supplier billing, from PO collection to invoicing, credits and disputes. You will collaborate with Bonus Controlling, Commercial, Credit Control, Accounting, and external suppliers to ensure accurate, timely processes.

We value 2–5 years in billing/AR, SAP experience, strong Excel skills and excellent English communication.

Qualifications

• An MBO+ or HBO-level qualification in Finance, Business Administration, Accountancy or a related field.
• 2–5 years of relevant experience in billing, accounts receivable, purchase-order management, financial operations or a similar role.
• 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.
• Excellent communication skills in English with internal stakeholders and external suppliers.

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.

Skills

Billing & AR

PO management

SAP

Excel

Month-End Closing

Internal controls

English communication

Education

MBO+/HBO Finance

Tools

SAP

Job description

MediaMarktSaturn Plattform Services GmbH in Rotterdam seeks a Billing Specialist to lead end-to-end supplier billing, from PO collection to invoicing, credits and disputes. You will collaborate with Bonus Controlling, Commercial, Credit Control, Accounting, and external suppliers to ensure accurate, timely processes.

We value 2–5 years in billing/AR, SAP experience, strong Excel skills and excellent English communication.