LinkedIn Software Engineer interview questions

Applied online, got the phone screen with HR. They asked basic questions about your career and what you have done so far. Then got the 1st phone interview which was very simple and easy coding question. The 2nd phone interview was much harder and requires a thorough amount of studying. Be prepared! HR was very nice and responsive.

The recruiter contacted me through email and arranged me a technical phone interview. I'm a little disappointed though, the interview was scheduled at 6:00PM Eastern Time. During the phone interview(using collabedit.com), the interviewer asked two coding questions: (1) the deepest common ancestor of two nodes of a tree (2) all permutations of a string. The questions were reasonable, but I failed to solve the second one. Also the interviewer thought I'm not engaging enough(didn't talk much).