TU means Institute of Technology. Says nothing about being a good university. Your wife is likely bound to your location what limits her options and like has a degree that is not very in demand, at least not where she lives.
Engineering could be everything. And if she has a degree in, let's say food technology and is willing to work somewhere deep in east Germany for a very low amount of money then she would find a job.
Engineering could be everything. And if she has a degree in, let's say food technology and is willing to work somewhere deep in east Germany for a very low amount of money then she would find a job.