Quoted from bigguybbr:

That sounds like he was an engineer in title only, and more likely a tech.
To be a professional engineer (I’m speaking from a mechanical perspective) he would need a bachelors degree that included 3 semesters of calculus, 2 semesters of calculus based physics, differential equations, numerical methods, linear algebra, mechanics of materials, statistical analysis of operations, thermodynamics, statics, dynamics, heat transfer, fluid dynamics, finite element analysis, modeling of dynamic systems, and 2 semesters of machine design before picking a specialty. Then they would need to pass both their Engineer in Training (EIT) exam, work in the industry, before then being able to take their Professional Engineering license exam (PE). This is why almost every engineer has a minor in math because you take enough credits in it during the course of study to qualify without taking additional classes.
Now English on the other hand, if it’s not technical writing, engineers don’t get picky with our words
BTW this isn’t a pinball peeve, but a life peeve of mine when people call themselves engineers who aren’t. Ok rant over. Let me put away my soap box…