Hello!
When asking for assinstance you should not be withholding information, which is required to make an assessment of the job and put forward an offer.
A) The shortcode is added how - manually, a widget, a tool-button of the editor, how?
B) The shortcode is added where - the post/page content, a template builder widget etc?
C) The exclusion criteria/set is to be provided how - list of post ids, any post metric, like: taxonomy/term, title, content, post meta, etc?
NB: Until you provide full details your budget is not considered binding in any way.
Regards,
Dobri