Ruben Duijn is the Founder & Managing Director of BlueWater Strategy, a Switzerland-based SAP, analytics, and AI advisory firm. He brings more than 23 years of experience solving reporting, planning, and transformation challenges across BW, BW/4HANA, S/4HANA, SAC, BPC Embedded, IBP/IP, ABAP OO, CDS Views, HANA, Fiori, and finance-oriented analytics architecture.
His track record includes SAP AG, BearingPoint, EY, Sopra Steria, and selected mandates across banking, insurance, manufacturing, transport, retail, and other data-intensive environments. Clients engage him when a landscape needs sharper architecture judgment, calmer execution, and real hands-on delivery rather than generic advice.
BlueWater Strategy helps organisations modernize SAP reporting, strengthen planning capability, shape cloud-ready SAP extensions through BTP and RAP, and adopt AI where it creates clearer insight, stronger online presence, and measurable commercial value.
23+ yearsSAP delivery and advisory experience
Business WarehouseBW/4HANA · SAP BW · HANA · ABAP OO · CDS
PlanningSAC · BPC Embedded · IBP/IP · AfO
S/4HANA & domainsFI · CO · HR · CRM · REFX
Cloud & AISAP BTP · RAP · Fiori · Applied AI
Core focusBusiness Warehouse, Planning, and Applied AI
Industry coverageBanking, insurance, manufacturing, transport, retail
BackgroundSAP AG · BearingPoint · EY · Sopra Steria
LanguagesEnglish, German, Spanish, Dutch