sector data analyst

first round was an online coding assessment on hackerrank (sql and python) which was pretty easy, then i got invited to interview with the head of recruiting, the interview was a mix of both fit and technical question, with the classic why citadel, why this position, tell me about you, pitch me a stock then she moved on the use of alternative data asking me about any type of data i could use to generate investment ideas, how would i use it, how can i detect noise.