Different definitions of engineer exist,
“... we are inclined to forget that for many hundred of years science and engineering went their separate ways as if neither had anything to contribute to, or learn from, the other. From earliest times engineers were proud and independent craftsmen who were guided in their work not by scientific theories but by common sense and by practical rules gleaned from experience. (Cf. Florman, Samuel C. Engineering and the liberal arts, New York 1968).
That sounds like a Liney to me..
And perhaps Scotty on the Enterprise should be referred to as the Chief Maintainer?