The Jye were a humanoid species native to the Delta Quadrant. Their race was known for their administrative abilities.
The Dinaali were one of many races that employed the Jye for said administrative abilities. Hospital Ship 4-2, on Dinaal, was run by a Jye named Chellick. (VOY: "Critical Care")
The name Jye was not mentioned in dialogue but was derived from call sheets.