I applied online. The process took 2 months. I interviewed at McKinsey & Company (Dublin, Dublin) in Dec 2010
Interview
If your application is successful you are called into to take a 60 minute Problem Solving Test of 26 questions. No question by itself is particularly difficult, but the test is, due to time constraints. Passing this, I was called back to two 1-on-1 interviews with an Associate and Engagement Manager. Each interview had a personal experience section and a case study of the Interviewer's own personal brand composed of a number of general questions aimed to test how exhaustive your thought process is and your mathematical reasoning. For the PEI, make sure to pick a story you're ready to talk about in intricate detail. Once you've picked your story, the interview will unwaveringly pursue it with a barrage of often irrelevant questions.
Didn't get to the interview stage so I can't say how the process is. Didn't get pass the game phase. Hopefully, next time, I'd be able to give a better experience.
2 Rounds of interview, PEI+ Case study. Final round is in person. PEI questions are easy, but the cases are very hard. Timeline took about 3 months between receiving the OT and Final round.
Interview questions [1]
Question 1
Tell me a time you worked with people from different background
General call with HR representative discussing experience and motivation for the role. More like standard screening instead of typical interview. Be sure to give a thorough background of yourself and have solid motivation.