I once met with the former chief engineer of Pringles. (This was years after he'd moved on and was working for a consulting company we ended up hiring to do some work for us). He was a food engineer. He really enjoyed his time on that project and didn't mind that his employer had him talk about his time there when prospective customers showed up.

Actually until meeting him I hadn't really understood that "food engineer" was a job and how complex it was. Just spraying sugary cereals with lacquer to keep them from clumping in the box is a complex engineering task combining designing manufacturing equipment and designing a formulation that can be used. Real systems engineering.