I interviewed 2 times with them. First time I was rejected. Second time I was selected. Interview was super tough and comprised of 4 rounds of 1 hour grilling each. First round was taken by a person who wasn't that confident but anyways he managed to grill me on core Java and basic coding practices. Second round was taken by an arrogant manager who was in super rush. He kept stopping me in the middle of my answer and kept asking the next question. I had to be superfast in answering. Second round was mostly focused on Multithreading. Third round was again by a manager, but he asked only basics of backend Architecture and Microservices. Fourth round was a client round where the client asked me some Java questions and then gave me some situational questions.