The data engineers I know started out as data scientists. They discovered that their ability to make models that did anything useful was hampered by low-quality

The data engineers I know started out as data scientists. They discovered that their ability to make models that did anything useful was hampered by low-quality or absent data. Then they discovered that there was a lot more job satisfaction (not to mention much better pay) in making useful data available than there was in clicking the "train" button over and over in slightly different configurations.