The interview process is not so hard and easy to crack. I have been interviewed by sales force Performance Group and there were 6 rounds . The first 4 rounds of interviews went well and after that they have asked to prepare on bunch of topics like Ruby on rails , Performance tools , Garbage collection , DB .etc . I have put much time and prepared well on these topics . Then there were 2 rounds with the US people and they also went well . Finally they come up with a decision stating that i don't have experience in performance engineering. This is not good because initially itself i have told that i don't have any experience working on performance engg and it was not mentioned anywhere in my profile. I think they should make a clear decision after scanning through the profile. The expectation is a bit high . My sincere advice to the candidates is that if the interviewer asks you to prepare on some topics . Just tell them that you are busy in doing office work and you dont find free time. Please don;t spend your time on preparation . You should not be asked to prepare instead you should be interviewed on your current skill set and what you have put in your profile.