As IT specialists, data engineers focus on creating and maintaining the infrastructure for large data sets. They design data pipelines to collect data from different sources, process it and make it available for analytical purposes.
Data engineers are also responsible for developing, implementing and improving ETL processes (extraction, transformation, loading). They also create data architectures and ensure that optimal data quality is guaranteed. Their work ensures that data is accessible and usable. In this way, they create the foundation on which data scientists and data analysts create and further develop analysis processes.