[Fire-Dragon-DoL]

Without any data and based on the juniors I met, they pour out way more bugs right out of the gate and the code becomes really bad if not kept in check. That's a substantial difference between a junior and a senior.

Of course this is dependent on technology and company onboarding and the codebase, so it's really haed.

But also a junior comes trained in one programming language, maybe two, and you encounter many different requirements that might exclude juniors. For example Company uses Elixir, no junior is trained in that, a senior polyglot will learn very fast,a junior might have problems.