First the HR will approach you. Second you gonna interview with users. Third you gonna interview with the CTO. If u passed you gonna get the offer. The whole process is fast.

the interview process take multiple step which contains: hr interview -> first user interview -> take home test -> second user interview -> cto interview -> hr (offer discussion). the interview process is pretty fast not so long until i got the offer. the interview with CTO more like problem solving and analysis technique