We're looking for a SAP S/4HANA MDG Developer to join our client's team and play a key role in a large-scale greenfield S/4HANA transformation. Our client is building and optimizing a mission-critical SAP landscape that supports complex logistics operations. As part of this strategic initiative, you will take ownership of SAP MDG development, enhancements, and innovation — ensuring robust master data governance across both current and future SAP environments. The Role As SAP S/4HANA MDG Developer, you will collaborate with functional and technical experts to design, improve, and maintain advanced MDG solutions. You will act as both a hands-on technical specialist and a trusted advisor, driving best practices and ensuring high-quality delivery throughout the full lifecycle. Key Responsibilities Lead and implement major changes and enhancement projects within SAP MDG (ECC & S/4HANA environments) Provide expert guidance on MDG best practices and solution design Translate business requirements into conceptual designs and technical specifications Organize and facilitate blueprint workshops Perform critical analysis of change requests and assess solution impact Act as the primary technical contact for ABAP developers during enhancements Write, develop, test, and debug technical specifications (ABAP & ABAP OO) Execute functional unit testing and support production transitions, including hypercare Provide ongoing functional support, ticket resolution, and issue debugging Contribute to system optimization, including legacy solution clean-up and new solution development Manage smaller project streams (timeline & coordination) The Ideal Candidate You are a seasoned SAP MDG specialist with a strong technical foundation and a structured, solution-oriented mindset. You combine architectural understanding with hands-on development capabilities and feel comfortable interacting with both business and IT stakeholders. Required Experience & Skills: Minimum 4 years of proven experience in SAP MDG architecture and master data development At least 3 full lifecycle implementations within SAP MDG Strong knowledge of SAP S/4HANA and SAP ECC Proven experience setting up mass changes in MDG S/4HANA Solid ABAP and ABAP OO expertise (technical specs, development, testing, debugging) Experience with BRF+ rules Knowledge of Floorplan Manager (FPM) UI5 knowledge Experience designing and implementing at least one RACI framework Ability to work on-site 3 days per week Trilingual proficiency: Dutch, French, and English (written and spoken) Nice to Have: Experience with Data Replication Framework Consolidation expertise SAP MDG UX enhancements Workflow monitoring in MDG SAP interfacing (EDI, ODATA, CIG), Ariba integration (MM, VMI) Familiarity with Jira, Confluence, X-Ray testing Background in logistics environments