a mover and a shaker
A person who is able to get things done with their power, influence, or money. She thinks her father can get me into law school. Apparently he's quite a mover and a shaker. The conference is going to be full of movers and shakers of the industry, so I want to make a good impression.
mover and shaker
A person who wields power and influence in a particular activity or field, as in He's one of the movers and shakers in the art world. At first the two nouns referred specifically to God, alluding to the belief that a divine force was responsible for all events. The current usage refers only to human beings. [Second half of 1800s]