>And if you try to explain to them things like partitioning, indexes, sketches, etc then they are not able to comprehend and argue that it’s not their job to learn, and that it’s the “proper engineers” job to scale the processing.

Make up a person and attack him, literal strawman. You sound pleasant to work with.

I’m referring to actual people I have worked and interacted with so no not made up.

They’re not engineers and shouldn’t have been labeled data engineers. They have some other value to the company, presumably, but trying to repackage them as data engineers does cause issues. That’s the topic of this thread.