Started with a technical phone screen with two problems. One was a LeetCode Easy, and one was a version of implement an LRU cache. Pretty easy, and the interviewers were nice and seemed smart. I moved on to the onsite.
There are five interviews at the onsite level. 2 coding, one with a hiring manager, one system design, one project overview. Coding problems were significantly harder in person than on phone screen. I don't know why they would do that. What drove me crazy is that I had a working answer (similar to his but not exactly what he wanted) and the interviewer wouldn't allow me to code it. He kept trying to point me to his solution. I thought the point of a good engineer is that we can come up with solutions on our own? I think that kind of interview process speaks poorly to their culture.
The second coding interviewer wasn't paying attention. I described my algorithm, started coding, and he started correcting my syntax. However, he was correcting it to a different language. And then he said 'well we don't use that here...' Okay, I thought the point was that the interview is language agnostic? This happened in the phone screen as well (asked me to code in Java). After I explained no, I am not using Java, he stopped paying attention at all. He just browsed something on his computer (scrolling and scrolling, and occasional clicks.. kind of like how you would use reddit..). I said I was done. He ignored me. I said it louder, he finally looked up and then took forever to catch up. He seemed very skeptical of my solution. I looked up the problem later, and my answer was the top rated on LeetCode so shrug. I had never seen that problem before.
I was very turned off by people insisting LinkedIn is a 'financially stable startup'. LinkedIn IPO'd years and years ago, and they were bought out over a year ago. One of the guys who explained he had only worked at startups said he didn't realize how political and redtapy big companies are. I'm guessing there's an internal push to claim they are a startup?
Only one interviewer was a real jerk (the guy who didn't pay attention), but I don't think I would interview there again. There is a lot of ego.