Taxi driver

A taxi driver is someone who operates a taxi as their profession.

On Sigma Iotia II in 2268, Spock told James T. Kirk that his abilities as a taxi driver left much to be desired after Kirk had difficulty operating a car on the planet. 

Upon nearly colliding with a time traveling Kirk, a taxi driver employed by Cab Co. used a colorful metaphor to criticize him in 1986 San Francisco.