mixologist

listen to the pronunciation of mixologist
İngilizce - İngilizce
A person who creates cocktails; a bartender

By the way, the difference between a bartender and a mixologist can be confusing, but normally a bartender serves the patrons at a sit-down style bar, where a mixologist would usually work at a very busy service-style bar.

{i} (Informal) one who is adept at mixing cocktails
bartender: an employee who mixes and serves alcoholic drinks at a bar