It may sound horribly depressing, but it rings true to my own experiences. That said, I think it also depends on what you consider to be "learning."
Most engineering jobs require a lot of horizontal learning: develop enough knowledge of a topic to do something useful for the company then move on. While academic learning revolves around developing depth in a particular subject.
If you'd like to learn enough about a topic to contribute something truly new to the field, 99.9% of engineering jobs will not satisfy you.