ALTEN interview questions

I applied through their HR at a job fair where I gave them my CV. A week later, their HR interviewed me over Skype about my CV to find out more details before sending the CV to the manager meetings. Two weeks later, I got a phone call scheduling a telephone interview with an engineer at Alten Digital. This interview lasted for about an hour, along which I was asked about my recent professional experience. At the end of this interview, I was invited for a personal interview at their office in Duesseldorf. This interview lasted about an hour. First they introduced the company and their fields of activity and then asked more detailed questions about my experience and qualifications. In the end, they offered to answer some questions I may have and the interview ended with the promise of a feedback in the following days. Their feedback came, but apparently they did not have a project in the near future in need of my skills. So I was not hired.