Cegeka developed a Cloud Data Platform Reference Architecture. This best-in-class architecture combines industry best practices with insights from years of data and AI expertise within Cegeka and guarantees a reliable, sustainable and future-proof data platform. Data Engineering is key to make sure data is accessible and made understandable. The architecture consists of a layered structure where data is processed, each layer has its specific characteristics and responsibilities and this division ensures a sustainable, flexible and reliable whole. This is necessary in a moving business context where a data platform has to meet changing requirements over time and have to handle any type of data, while reliability remains the focus from the role as the 'single version of the truth'.