Skillman

Susman (1970) found clear goal differences between skillmen and their helpers in an oil refinery.

Source: wiktionary

The day that she went, I said, "You know, you have been one of the best skillmen, ever."

Source: wiktionary

In one half, merchants, professionals, speculators and country gentry, wigged, stocked, breeched and buckled, hold a million post-mortems on the day's dealings. In the other, the trousered classes - artisans, skillmen, journeymen - argue the toss over ale and pie. The boundary is fluid, but the lines are clearly drawn.

Source: wiktionary