[ido]

I think I'd get a lot less than 25-30% coding time while managing 8-10 people (and also depending on what you're doing while "supervising", if there's a dedicated project/product manager in addition to you, how senior are the other engineers, etc)! In fact at that point I think I'd be managing too many people ("ideally" 1 lead/manager isn't managing more than 5 ICs).

[zmgsabst]

My experience of Big Co is that you have both a manager (HR and business sense) and a supervising/lead engineer (SDE 3) for a product.

I don’t think I explained that well — but a 3:3:1 to 5:5:1 SDE 1:2:3 mix is fairly standard across industry. (Again, with an SDM doing the managing.)

I used the word “supervising” because I wanted to distinguish that technical leadership from managing, but didn’t explain enough. Sorry for the confusion.