IBM

Cannot think of anything other than working from home.

Location in the middle of nowhere. Horrible public transportation to get there. No transportation provided by the company.

Expensive canteen. Lunch costs 6 Euro on average. The quality of the food is horrible.

Horrible work environment -- designed to ruin your back and health in general. You will have to wait for 2/3 months to get your monitor, keyboard, mouse, and stuff like that. Then you will realize they are probably from the last century. Nosy offices where it's impossible to concentrate. There isn't a place on the whole campus where someone can sit quietly and relax. They don't even have enough toilets -- don't get me started about how clean they are.

Underqualified engineers. Well, I can understand why qualified people won't want to stay here. Some good engineers are here only because they are stuck or something like that.

You won't learn anything useful -- in terms of professional skills or personal development. I have never been surrounded by so many immature people, not even in elementary school.

Technologies are outdated. Often ugly hacks are written to put together those old technologies with some new buzzword technologies to create new, random products which make no sense. You can't have any opinion about it because you would be treated like cattle.

They will provide you irrelevant training that they have developed to waste people's time. Possibilities to grow in the company are minimal. It would depend on who you know and who you hang out with in the company. Salary is low compared to other big companies.

Do not think they will listen. Why bother!