The #1 Thing You Need To Know About Promotion In Tech
Promotion is about behavior, not output
Raw output doesn't scale. You only have so many hours in a day, and your hands can only physically type so many lines of code per minute.
Senior engineers can have 10x to 100x the impact of a junior engineer. In order for them to do this, they need to add deeper types of value to the business.
That deeper type of value comes from behaving in a fundamentally different way to more junior levels. In particular, engineers at these very senior levels add multiplicative value instead of additive value. An example of this is a senior engineer empowering many others to write code instead of just writing the code themselves.