A major Belgian bank needed to modernize its data management strategy to overcome limitations of centralized data architectures and enable scalable, domain-driven data usage. ACA Group guided the transition to a Data Mesh approach, combining strategic consulting, stakeholder alignment, and hands-on implementation of a self-service data platform using technologies such as Kubernetes. This resulted in a validated data product model, improved data ownership, and a scalable architecture that accelerates data-driven innovation and governance across the organization.