Medior SAP Master Data Migration Consultant Role Overview We are looking for a Medior SAP Data Migration Consultant to support a large-scale migration from SAP ECC to SAP S/4HANA . You will configure and operate SAP Data Services (SAP DS) for data extraction, transformation, validation, and loading into the S/4HANA migration environment. Key Responsibilities Configure and initialise SAP Data Services for data migration. Extract and integrate data from SAP ECC. Develop and maintain data mapping, transformation, cleansing, and enrichment rules. Perform data quality checks before and after transformation. Execute migration runs and verify data completeness and accuracy. Create reconciliation and validation reports using Excel, CSV, Power BI, or similar tools. Populate staging tables with transformed data for S/4HANA migration. Adjust transformation rules based on validation results. Document data flows, transformation rules, and technical processes. Monitor migration schedules and report risks or critical issues. Work closely with migration leads, functional consultants, SAP teams, architects, and business stakeholders. Suggest improvements to data migration processes and performance. Requirements Minimum 4 years of experience with data manipulation tools / ETL . At least 1 year of hands-on experience with SAP Data Services (SAP DS) . Proven experience with SAP ECC to S/4HANA data migration . Experience with end-to-end SAP data migration projects, including cutover and production migration. Strong knowledge of SAP DS extraction, integration, transformation, cleansing, and enrichment. Experience with data quality controls and reconciliation/validation reporting. Good understanding of SAP ECC and S/4HANA data structures, particularly FI, CO, PS, FM-BCS, MM, SD, PM, and HR . Strong analytical and problem-solving skills. Ability to work independently and collaboratively. French: Fluent, written and spoken. Assignment Details Location: Namur Start: September 2026 Duration: September 2026 – March 2029 Workload: 2 days/week until December 2026, then 4 days/week Working arrangement: Mainly on-site, with up to 1 remote day/week part-time and up to 2 remote days/week full-time Full on-site presence may be required during key phases such as testing, training, go-live, and post-go-live support.