Was thinking recently about this and the pointlessness of defining whether the worker is male or female.
Doctor, pilot, teacher, nurse etc aren't gendered (although I do appreciate that some people may assume the workers gender). I know we use headteacher now instead of headmistress / headmaster and stewardess is now flight attendant etc.
The only thing I can think of is waiter and waitress. I wad wondering if there were moreand what the suggestion would be for renaming it.