Cytokinetics takes their culture very seriously. Culture building and nurturing is not just an academic exercise for them; it is a binding contract between themselves, their employees and their NorthStar, the patients. If you are competent in the skill set for which they're hiring and you have spent enough time in the website learning their culture and gauging your fit to their culture, you should be beyond prepared for the interview. The interview is not designed to trap you, embarrass you, or demean you in anyway. Cytokinetics is one of the most managerially enlightened startups in the market.