What Israelite became the chief assistant to an Egyptian king?

Joseph, an Israelite, became the chief assistant to the Egyptian king, Pharaoh. After being sold into slavery by his brothers, he rose to prominence in Egypt by interpreting Pharaoh's dreams, which predicted a coming famine. Impressed by his wisdom, Pharaoh appointed Joseph as second-in-command, giving him authority over the land and the distribution of resources during the famine.