After the interview round, I was invited to a pair programming interview. This interview was about developing a mechanism through a interface given by the interviewers to update the exchange date and reduce costs to the company. Then I was invited to the next round of a technical interview for a "system design interview". This term is broad and there was no clear instruction to which area I should be preparing for. At the end, it was more like another pair programming interview which the questions are revolving around the question "Can you design an elevator?".
