First Non technical call with HR to arrange the tech calls and prep materials in advance. First round with one person from linkedin AI team via coder pad. and follow up discussion on AI algorithm of my own choice., the error theory and accuracy vs recall, ROC curve. Regularization, back propagation(as i choosed NN as algorithm of my choice).

Had a 500 word essay on HackerRank, very unique process for a technical role. Sent me one through email portal, but did not advance after this round, asked for feedback, did not respond .