I just say they are world class programmers. Or excellent. There is no problem. How do you describe doctors who are very good at what they do? Do you call them

I just say they are world class programmers. Or excellent. There is no problem. How do you describe doctors who are very good at what they do? Do you call them ninjas? "Med nerds"? You're claiming there is a problem here that doesn't exist. We have words to describe people who are good at what they do.