witch. wizardess? sorceress is born with powers, without the need for historical documents slash knowledge or training and practice. they can coast through life.
"Magician"? Works for all genders, too!
"Magician" is gender-neutral and ideal, but not "typically female".
Unfortunately "Magician" doesn't sound like a person you would want messing around in your code base, though.
The company has "magic" in its name, I think they get a pass.