I applied through a recruiter. The process took 2 weeks.

I was approached by the HR. In the first call she explained me about the company and what they are looking for along with JD. After discussion, she scheduled an exploratory call after two days. Exploratory call went fine and further rounds of interview were scheduled same day for the next working day. The first round was set up for 9AM which was video call and covered problem solving. Second round was kept same day at 5PM which covered design aspects of the system.

After this I never heard back from the HR. I even sent couple of mails for feedback but didn't receive any reply. Highly unprofessional behavior. When they wanted to schedule the interviews, they were behind me to give the interviews within days but when it comes to responding to the candidate, they didn't bother.

The topics were problem solving questions and design basics.