3 skype interviews and 2 on site interviews. Beware that if you wan't to work there, you have to say goodbye to your personal life. The CEO is known for being a workaholic and expects you to be happily selling him your life since you'll get a high salary. "Here we start working very early, until very late, all week ends, all year, we don't take vacations". The "culture" of the company is that they really don't care about individuals as long as they see $$ results. That being said, I like their product ! Just think twice before you go from user to employee.