- HR Call - Coding Challenge - System Design At the end of the day, if your ethnicity is not of their biggest race (not talking about caucasian nor the proxy offices in US or Europe) don't even bother. It will be their formality only to able to claim "we tried hiring other races". Even if you are employed, you'll just be clown. Anyway for the rest of daredevils the culture is based on their ethnicity, they want 100 score perfect text book answer for all their answer. They will keep adding questions till you are exhausted.