4 rounds excluding HR discussion. 1st round on phone and 3 onsite. All of the interviewers were nice except for the last one. The last interviewer was rude and unprofessional.

The last round of interview started with the statement that my resume is tailored and I don't know what I have written on my resume and this was somehow evaluated without having a word with me and the interviewer was shaking his head and shrugging every time even before I end up answering something. Communications from HR were slow and I had already made my decision before the offer was released.

C++, Data structures, QT and software design. Average questions. They asked about finite automata and this was the only time when I said "I don't know the answer".