Well people here at EVC tend to take the tautological view that a scientist is someone who practices science and then use it as a way of dismissing opinions from educated people who have studied science but don't practice it. That's just a nonsense, good ideas and argument can come from anywhere - they just need to be backed by reason and evidence.
That is of course true. But generally speaking, people new graduates with a BS degree even in scientific disciplines do not work as scientists. They are mostly working under scientists.
It's actually more usual for an engineer to get a B.Eng than a Bsc.
There really is no distinction between a B.Eng and a BS in Engineering. Schools have some leeway to call their degrees what they will, and there seems to be a lot more variation in what UK schools and others do compared to what US schools do. BS degrees are generally more rigorous than BA degrees, at least at schools that offer both.
and then use it as a way of dismissing opinions from educated people who have studied science but don't practice it
I'm not sure what point you are making here. I am certainly not advocating dismissing Dr. Brown for not being a scientist simply because he has an engineering degree. I have actually made the argument that we should not do that.
I would also say that my other engineering friend who is an Aeronautical Engineering and designs flight simulators for British Aerospace also probably thinks of himself as a scientist. And I bloody sure I do too.
Your description does not advance or provide an argument that your friend is a scientist. But what of it? Not being a scientist is no insult to an engineer. It is only an insult to people who are attempting to do science and have failed to do so.
I graduated with a Bachelor of Science degree in Electrical Engineering and Physics. I have never considered myself a scientist because I generally don't conduct scientific investigations. But that is not the same thing as saying that I don't approach scientific manners in a scientific method or that my thought processes are somehow inferior to those of scientists
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
I have never met a man so ignorant that I couldn't learn something from him. Galileo Galilei
If there is no struggle, there is no progress. Those who profess to favor freedom, and deprecate agitation, are men who want crops without plowing up the ground, they want rain without thunder and lightning. Frederick Douglass