1 round is an interview with HR, involving many questions about your previous work and how well do you know about their company and this role. 2 round is an interview with HK lead. This round is more about how to navigate their software. Be careful and save some time to send out an email. 3 round is an interview with HK lead offline and many other seniors online. So many questions about your personality. They want to know you inside out. After all questions, you need to draft a virtual email about some client request. Main point is to be careful, helpful, and I think they want native English level.