As a side note, the author's bio is interesting. He went from assistant VP at Merrill Lynch to being a software engineer at Etsy.
I remember once when my dad worked at IBM, he mentioned the president of IBM was only 5 "bosses" up from him. I was really impressed, until he told me that it's not that impressive, because 10,000 other people are also in the same position.
There's entire industries where you start out of college around age 22, get an entry function for 3 years, a follow-up function for 3 years, and then become vice president by 30, and stay there for life, become a partner or change careers. The amount of VCs is ridiculous and totally lost its meaning.
Titles in finance usually reflect pay band rather than any sort of management role.