Throughout my career, I have encountered several engineering interns who while very knowledgeable, had very little real design experience. When I gave them a design task, they struggled to organize their knowledge and produce a quality product. In contrast, those who had a history of making things, rarely struggle to produce quality results. It's always obvious to me who I would rather hire and work with. If your perusing a job offer, come prepared. Engineer or not, by gaining experience you improve your ability to deploy your knowledge in a meaningful way.