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Here is an option to try, I have not tested but the theory works
Create a new field on the employee records Text(Max) then using a business rule ForEachChild roll all the employee linked contact groups to your new fields as a comma separated list. Now you should be able to use a GetUserField() command to grab this list then do a find on your group name in the list, if its found the QA will be displayed.
I agree it would be nice to have a more defined function but this might get you a solutions faster.
I just tried building this out, the current user functions are not enabled for interface expressions so it will not work...sorry.