Firstly, human resources interview and gives homework in Spring Boot which takes 2-3 days to finish. Then tech team in Betbull review your code&project. They invite in to technical interview and ask some questions about your code/unit test/service etc.. And additional questions about queue, microservices, java8.

I speak with someone who seem interested in something else. They not really ask me questions, but hire me anyway. I'm surprised. Really I should have seen warning for this., because the company not care. You start work and be abuse.