Bad management and lack of transparency, even if your own manager told you you exceed expectations or you're impact and work are outstanding you will not get a chance to apply for promotion because "the promotion level is high" and "you need to be in the company since more than a year". Seems like they are not open to admit recruitment issue and people working hard even over expectations are not promoted and doesn't even get a salary review. Salary is low for Germany, salary doesn't considered degrees neither experience (if it's not one of the big tech companies) but just match their salary ranges. So people getting hired after you will get better salary than you even if you have more years of experience or degrees. And you will not get salary review once a year. Heavy feedback policy, as an employee you are permanently ask to give feedbacks on your peers but you're never asked for upper management feedback. I start to wonder if there is any possibilities to professionally grew in this company!