Noun – Technician
1 : a person whose job relates to the practical use of machines or science in industry, medicine, etc.
They hired a technician to help maintain the office’s computers.
She is the lighting/sound technician for the play.
2 somewhat formal : someone who has mastered the basic techniques or skills in a sport, an art, etc.
As a painter, he was more than just a technician; he was a creative genius.