Journeyman
Journeyman , noun
1.
Formerly, a man hired to work by the day; now, commonly, one who has finished an apprenticeship and is a competent worker in a handicraft or trade, but has not received recognition as a master; -- distinguished from apprentice and from master workman.
I have thought some of nature's journeymen had made men, and not made them well.
2.
A competent and experienced worker who performs adequately but without a high level of expertise or imagination.