passed all tech interviews and failed the culture fit questions. The HR expected the candidate to be excited in working a fast and challenging start-up environment with high development velocity and high number of working hours. And they expect you to state that loud and clearly. When they asked motivation for moving to the new job, they de-value the facts that most people moves for better compensation and consider that as a negative. If you really want to get the job, suggest to speak loud that you are thrilled to work 80 hours a week in start-up and you do not care about base compensation but only work.