The interview is very straightforward and it's done efficiently. After a short 20min introductory phone call from HR, an hour-long skype interview happened with a line manager and the same HR person. Besides the usual interview questions, the LM tested my theoretical knowledge of supply chain management, and I also did an Excel test (using VLookup was the most complex task). After passing this round, HR sent me a case study to prepare for the final interview with the LM that I'd work with, who also asked me some general interview questions and was interested in my motivation and past experience. The CS was related to the possible projects, candidates would work on later.