As a software engineer who has worked intimately with data scientists in Big Tech companies, this comment sums it up exactly.
One minor thing to add is that not only is the data science field overflowing with junior/mid candidates, but the entire computer science field as a whole.
What happens in seven years when those candidates become experienced? Will they have dropped out? Will there be a glut of experienced software developers?
One minor thing to add is that not only is the data science field overflowing with junior/mid candidates, but the entire computer science field as a whole.