I had chat with HR in US and he refereed me to the manager in Germany, the cancel the interview two times because of mistake of the HR person for creating wrong online video conference meeting room, The manager ask about my experience and technologies which I used before and after that they offered me an onsite interview (it was difficult for me since the office was 7 hours train from where I live ) they told me they will cover the cost of train ticket. onsite interview was really weird they didn't event know what should they ask me. After a month they didn't respond and they didn't even refund the travel expense I contact HR so many tine and he didn't even respond to my email. I all I can say they are unprofessional and rude.