[TeMPOraL]

Senior engineers delegate in part because they're coaxed into a faux-management role (all of the responsibilities, none of the privileges). Coding is done by juniors; by the time anyone gains enough experience to finally begin to know what they're doing, they're relegated to "mentoring" and "training" new cohort of fresh juniors.

Explains a lot about software quality these days.

[abletonlive]

Or you know, they are leading big initiatives and cant do it all by themselves. Seniors can also delegate to other seniors. I am beyond senior with 11YOE and still code on a ton of my initiatives.