Unfortunately, I do not have a good experience with this company. Shortly after my documents submission through an online portal (CV, cover letter, and salary expectation) I had my first test appointment in few days. The first test included 5 set of problems, mainly covering probabilistic and logic tasks. The next round of interview I had two weeks after this test. In this round, I was interviewed by two people from Austria - video conference call. During the interview, they were asking me about my past experiences, my skills (programming skills and math) and my previous field of research. At the end, they asked me a math question - similar to the ones I got during the first test. Finally, I was asking them for more details about this job - I wanted to know if it is a research job or includes other aspects also. Unfortunately, I did not get a straight and concise answer. Moreover, I am HIGHLY DISAPPOINTED because I still did not receive any update from this company - neither positive nor negative response (and more than three weeks passed). So, be aware that this is not something well-defined - it seems that they are confused about whom they want, and what they want.