Yep same here, I have been through 2 fairly sizable exits, in which I build the tech from the ground up and have done some pretty complex development in my career. That being said I have difficulty with any interview where trivia type questions are asked, let alone the whiteboard as it puts me totally out of my element, I create on computers, as such it is where I do my work, the whiteboard in front of people that I do not know, is not a place to draw out creativity on demand, it is the opposite of the environment needed for an INTJ.