Inventor

Inventors were those responsible for inventions. (TV: The Daleks, The Keys of Marinus)

John had been told that his and Gillian's grandfather was "an inventor or something." (COMIC: The Klepton Parasites)

Nikola Telsa was notably appreciative of fellow inventors, regardless of gender; something the Thirteenth Doctor returned, being more impressed with him than Thomas Edison. (TV: Nikola Telsa's Night of Terror