There were 2 rounds, round 1 was questions about Docker, Kubernetes, OS concepts . 2nd round was 1 week later about MicroServices, SpringBoot and a Coding assignment. The questions were of moderate difficulty and I answered most of them including completing the coding assignment during the interview. The Company HR was pestering me to make time for the interviews which I did by taking half a day off. But later they did not have the courtesy to communicate that they would not proceed ahead despite me sending an email an calling them (Which they ignored). How a company treats candidates they don't make offers too speaks of their company culture.