Applied online, was contacted morning after to schedule phone screening for same day. Was a 30 min. high-level, usual generic questions, conversational. Next, phone interview with hiring manager, same length around 25/30 min. no tricky questions, why you want to work at LinkedIn and why this position kind of questions. For the 3rd round, had to prepare for a sales role play exercise/presentation which was not a big deal but do prepare for it.