It seems to me you are concentrating on the negatives too much - no place is perfect, otherwise they would not need you. I would pick one small thing, try to i

It seems to me you are concentrating on the negatives too much - no place is perfect, otherwise they would not need you. I would pick one small thing, try to improve it without complaining, while also delivering on your day-to-day tasks and see the feedback from your peers. The question you need to ask yourself in the end is "can I be part of the solution?", if the answer is "yes", you will gain trust, increase your salary/compensation, and have the opportunity to do what you like. In my opinion, that's what a senior is.