The level system (junior, mid, senior, staff) was never a development model. It was a compensation and expectations framework. It told you what someone should be able to do at each level. It said nothing about how they got there. But because the environment was producing growth on its own, the gap was easy to ignore. The labels tracked what was already happening, and everyone assumed the structure was the mechanism.

Interesting observations on the growth from junior to senior, and how AI changes that, or maybe for some managers doesn’t change it much at all.