Unifonic interview questions

I interviewed at Unifonic, the process took 2 months, Starting with a screening interview with the recruiter, then one interview with the recruter he asked me 16 technical questions and the meeting was recorded to be evaluated by tech team, then a more deeper technical interview with a staff engineer it was great interview, then a interview with one of the managers, it was a system design interview and was alitle bit mind blowing, the last interview was clusture fit interview.