Just to add to my comment above, I recently did a round of hiring for a new embedded engineer. I had a handful make it to the in-person interviews.
When asked about previous projects, almost every single one waved their hands and tried to explain how they glued widget A to framework B and <magic> got product C.
Exactly one candidate brought materials to show things he had worked on and how the skills he used in those projects applied to the work we were doing. You could see eyes light up when he was asked "so, tell us about <project z>" and he smoothly pulled out some pages to show.
He blew everyone else away and got the offer.
