If you have management on site, you'll be lucky. Most managers are located in New Jersey or NYC, and you'll never see them. This results in a disconnect. They may forget about you, see you as numbers, see you as an inconvenience, or all three. Teams may be scattered too, which makes this issue worse.
There is a severe lack of training. Management often expects you to understand complex internal systems the first time you look at them. They don't offer any training or documentation to help with this. They overload the senior employees with work since they won't trust their newer employees, so seniors can't help train either.
Work-Life balance can be strained, especially if you have a highly international team. Management may also expect weekend work and refuse to give any comp for it.
Mobility and raises are minimal. Don't expect it.