Google

The interview process is long and not easy. There will be a couple of phone calls, online exams, and then more interviews on site. Study a lot, practice with online exercises, and read your college algorithms book.

I was recruited via LinkedIn and had two phone interviews. The first interview's scheduled time was two hours late. I emailed the recruiter after the engineer was 30 minutes late, and it took him at least an hour to track him down. Other than that,

Really good. I had to write a program and test it.