Can I be a roller coaster designer if i major in architecture or industrial design?
You need to ask roller coaster design firms this question. Do your research and find out who is doing the work on these machines. Call them up and ask for a VP of engineering – or at least their contact info. Write them an email saying you would like to learn what it takes to become one of them and why you want to do that kind of work. I would be surprised if you didn’t get really good answers out of those folks.