applicateur
A person who has no programming, logical, or scientific abilities but knows a particular computer application extremely well.
"I think Jim should be the project manager on our next branding project because he is so amazing using Libre Office."
"Oh heavens no. Jim is an applicateur and actually has no interpersonal skills or knowledge about anything other than Libre Office"
"Oh heavens no. Jim is an applicateur and actually has no interpersonal skills or knowledge about anything other than Libre Office"