The interview consisted of three main parts. First, There was an initial call mainly on the details of current status of the candidate. Second, there is an online interview with 2 LinkedIn employees on coding and machine learning questions. Finally, there is and on-site interview consisting of 4-5 sessions of at most 1 hour each (on coding, on machine learning, with a team lead/manager). In the end, I didn't get any return from the HR neither positive nor negative.