Pay is substandard.
HR is dense and immovable.
Be careful about 'trying to get your foot in the door' and moving into the position you really want. Promotional raises are weak. I moved from one position into another and due to HR processes being so crummy they did not adjust my salary to be equitable within the department, leaving me about 40% below the market standard for the position. Management spent a year pursuing with HR trying to get me an adjustment (3 levels of management) and were unable to secure anything.
1-3% annual raises depending on company performance. No merit based raises.
Dealt with "mandatory overtime" for a month department wide because "some people" were behind on projects. I wasn't in fact I was ahead of schedule so I was supposed to stay around for an extra 10 hours a week just so management didn't have to be the 'bad guy' with individuals that weren't pulling their weight.
Management doesn't have the power to do the right thing. Too much bureaucracy.