This could be bad or good depending on personal preference, but on general there is a lot of travel (This could change according to your job position)
Company has conflicting cultures between departments leading to a big mess in coordinating projects (nothing gets done at the right time)
When a problem is detected a lot of finger pointing goes around, which prevents employees from learning.
Depending on the department you work for, the turnover rate is s very high. (Many people gets fired and hired)
Low engineering salary.
Depending on the project, long work hours can be expected. (Although this is not every day and every week, you can still have a satisfying personal life. At the same time this is not the place for the regular 8 hours working day)