Technical phone interview involved 2 engineers working on a single problem. The difficulty of the question was average. You write code on an online text editor. The problem given would have an extension of it if you solved it timely.

My issues with this interview: I solved the problem but wasn't able to solve the extension problem due to time constraint. I did not proceed to the next steps, and the reasons were I thought was just hypocritical and unessential. Syntax+conventions. When I started coding, I mentioned for the sake of time, syntax and conventions wouldn't be included and if they were alright with this - Engineers OKAY'ed on that. Such helpful feedback. Boggles my mind. I've been in interviews where engineers had clear communication throughout the entire process and were very engaged. These engineers weren't. Doesn't speak for all engineers at LinkedIn. Did not have a positive experience.

Hash data structure.