Engineer. I'm a tooling engineer, currently designing deep draw stamping tools, though I've done thermoplastic extrusion tools in the past, too. (There's a good chance that at some point you've driven a car with a window seal on it that came out of a tool I designed and built, unless you only drive imports.)
The funny thing is that I did a dual major at MTU, computer engineering and human biology. Figured I'd design medical instrumentation, but I had to drop out in my senior year to nurse my mom after a bad auto accident, and never got my degree. A temporary programming job led to work as a detailer, and eventually tooling engineer via apprenticeship.