SAP Domain Architect Supply Chain Management (SCM)

About the role

NMBS is transforming its business through the shERPa program, implementing SAP S/4HANA as a greenfield solution across Supply Chain, Rolling Stock maintenance, Infrastructure and Operations. As Senior SAP Domain Architect Supply Chain Management, you will define and lead the target architecture for end-to-end supply chain processes, covering demand and supply planning, inventory and warehouse management, procure-to-pay, logistics execution and the maintenance supply chain, in the context of safety-critical materials, rolling stock availability, finance, HR and customer relations.

Key responsibilities

• Define the S/4HANA SCM target architecture for depot operations, rolling stock maintenance flows, critical spare parts and logistics constraints.
• Lead full-lifecycle S/4HANA SCM implementations as Domain Architect.
• Own solution design for Inventory Management, Warehouse Management (EWM), Transportation Management and SAP Business Network for Supply Chain; optional IBP and manufacturing integration.
• Model processes and enterprise capabilities with ADOIT or ARIS for governance and compliance.
• Lead workshops with senior stakeholders and oversee delivery teams, validating design decisions and adherence to the future-state architecture.
• Guide integration of safety-critical stocking policies, long lead-time parts, multi-depot inventory and material traceability.
• Support project execution with ServiceNow, Jira, Xray, Cloud ALM and Solution Manager.

Required profile

• At least 15 years of professional experience in SAP Supply Chain Management, including MM (basic), IM, WM or EWM, mobile and automated warehousing, transportation management and integration with SAP PM.
• At least one full-lifecycle SAP S/4HANA implementation led as Domain Architect, evidenced in the CV or project references.
• Experience in an asset-intensive, logistics-intensive or regulated industry such as rail, utilities or MRO.
• Professional experience with SAP Ariba and/or supplier collaboration platforms.
• Advanced experience with ADOIT and/or ARIS.
• C1/C2 Dutch or French and at least B1 English.
• Availability to work onsite near Brussels-Midi station at least two days per week.

What we offer

• Hybrid working with flexible hours, 35 days of annual leave and a target bonus.
• Mobility package with company car or alternatives and a public transport season ticket.
• Insurance covering hospitalisation, dental care and outpatient costs, plus group insurance and a cafeteria pension plan.
• Meal and eco vouchers, and net allowances for hybrid working and internet.