"We're a long, long way from a machine being able to replace me as a plumber," future of work expert Ravin Jesuthasan told CNBC Make It.

Here’s a ranked look at the 20 careers that posted the lowest AI applicability score: Other jobs that are in the safety zone include industrial truck and tractor operators, highway maintenance workers, dishwashers, automotive glass installers, embalmers and phlebotomists.