At the beginning there are coding exercise and human resources interview (indepedently). If you pass them, there are 3 interviews, first lasts 1.5-2 hours, second 3 hours with coding exercise and 3rd 1.5-2 hours . The topics of the questions in the 1st and 3rd interviews are data structures and algorithms. An interview includes 3-4 questions and the interviewers were nice people.