1 to 1 Phone interview ask about resume, option and stochastic calculus. It's technical interview focusing on hands-on experience, some fundamental understanding of financial products and stochastic process. If you are not majored in stochastic stuff, you need to read at least an introduction book on that subject before the interview. I answered most of the questions except the stochastic ones. It seems they do really care about that area therefore I didn't pass the interview.