I have noticed in those years of carreer three main things that all successful companies share.
When we are joining a game company, many times we are just looking for a job. We study the companies and we look at their games. The most probable thing is working on a game that will not be successful. That’s a fact, there are statistics for that.
The first thing is that they have a great administrative department. They know how to keep the bills in order, how much the company is spending and what is the revenue. They are tracking their burn rate and the house it’s in order.
The second thing is that there is at least one person dedicated exclusively to quality assurance. Testing the game every single day, reporting bugs and creating processes to improve and automate the process of finding bugs. QA people save games. Games without QA will most probably just be bad games.
Ultimately, there is at least one person dedicated to community management and marketing. Games nowadays work a little like a service. Even a small indie game when published receives feedbacks and reviews and devs have to iterate inevitably. You need people dedicated exclusively to the sales, external communications and support.
If you are about to join a project with no QA people, or no administrative people or no sales/support/community people believe me: red flag! If it is your first project it may be OK according to its scope, but not expect quality, security nor players satisfaction.