First interview was a phone screen, which covered the basics of object oriented design.

Second interview came a couple months later and was on site with three individual engineers. This interview was bit more in depth, it involved 3 questions related to algorithm design, application design and a high level implementation of the database objects required to store the applications data with the correct normalization. The questions were quite manageable and came from regular scenarios which would occur in most enterprise solutions.

The last interview was over the phone and was strategically focused on the technologies that the position required. Mostly focused on SOA and the Microsoft stack which can be used to build these types of solutions.

One of the interviewers asked about database isolation and optimizing a process which will have a high level of concurrency. This was not difficult for me but was unexpected.