[bitanarch]

ex-AAPL senior software engineer here.

You generally only get good at interview problems when you're entering the door. After that, interview questions generally have nothing to do with your job.

Also, as you move beyond entry level positions, political skills, communications skills and connections becomes more and more important. Unless you happen to be at some massive growth teams at the right times, it's basically impossible to move beyond ICT4 or L5 unless both you and your boss have very good grasp of politics.