Typically 3 interviews, first an initial screening to test whether you are what your CV proclaims, then you will move onto a competency based interview, followed by a either a follow up panel interview or an interview with a more senior leader

I was contacted by an engineering firm in Mobil, AL, about an opportunity at Sygenta. The engineering firm set up the interview with their client (Syngenta). I was told that there were four interviews (includinig me) conducted. The panel consisted of the engineering firm representative, the department manager, two of the buyers in the department and a buyer that was retiring whose position they were interviewing for. Although the interview went well, they were looking for candidates with SAP experience (which I did not have).