3 junior engineers are holding together legacy code that generates 20 mil a year having had no leadership that has taught them any sort of best practices? Give them all raises and get over yourself.
OP says it has been developed over the course of 12 years. The team is currently 3 junior devs. There's probably a huge turnover.
It's likely there's a lot of history and political shenanigans that OP isn't aware of yet. This could be a sinking ship. If it's a profitable business why is the team made of juniors?
A small company with legacy code that is a huge mess but that is maintained by the same person for the last 10 years is one thing. The same mess in the hands of 3 juniors who don't even use version control means no one with experience has lasted long enough at this company. That's a red flag.
