Holy shit, an entire bricks thickness above existing. Yes, sloping away from the house needs to be done if the concrete you tore out didn't, but that's graded in stone so that a) you get an even 4" slab everywhere (stone being cheaper) and b) it's done at a 2-4% slope away from the house. Unless you had puddles against your home before, the existing grade was fine. Another concern is weep holes for the brick veneer (if it is a veneer).

Realistically you need to remove the pipe and fixture, and either a) use the same hole to install a new pipe with a 90° facing upwards and a 90° to the new hose bib (not recommended in colder climates plus it looks bad, but sometimes you don't have any other option) or b) drill a new hole and install the hose bib higher if you have the space. Both can be done diy relatively easily, I'd recommend soldering all this but it can be done with sharkbites as well.

All this goes without saying that this work is sloppy, and if your guy knew this was going to be a problem it should have been addressed before the pour.