Standard day-long interview, with a 1:1 interview on the hour every hour. Also 1 hour lunch (non-interview) and 1 hour presentation. Presentation questions were fair and basic. Interview questions were fair, but some tended to be very technical. There was no phone interview prior to the on-site. Other than scientific knowledge, two things they value are safety consciousness and entrepreneurialism. Very nice people though. Being asked deeply technical questions are fine, but I felt that a couple questions were not very valuable, because you could easily look up the answer in wikipedia in 3 seconds.

I applied online for a position in Ghent, Belgium and was invited for an interview. The interview was online with the HR person and the Hiring Manager. I was told I would hear back from them in 1 month. I was called by HR 2 weeks later to tell me I was not selected. It was nice that they called. I did not ask for feedback. Still, they decided to give it to me anyhow in a very unpleasant tone: "We are looking for someone who will be the driver of innovation, you know, really drive the innovation, and we just don't see that in you...I mean you are just, you know, just "like that", more like an ordinary employee"—very condescending attitude when delivering this feedback. Profound employee disrespect, since every employee, no matter how "ordinary", deserves respect - this might drive innovation much more than anyone thinks. Finally, real leaders are usually hidden where you don't expect to find them, but this might be too high of a psychology for some.