Wow that's worse than the ones I installed personally.

Maybe if the holes are bigger and you use washer behind the hole then adjust the pulls.

Yikes that's bad. He must not have used a jig. It might be possible to move the one side down and the other up to get it level and have the holes covered but it looks like that will be tight. It may also be possible to fill the holes and hide it well. Either way get the guy back out to redo this.

Oh my thats awful! I couldn't live with that at all, not even slightly off. But there might be an easy fix - this happened to me once as well and fortunately the holes had been drilled slightly oversize on purpose, to allow for adjustment. My installer put all the handles on quickly then left for the day without telling me that he'd be straightening them all out the next morning. I freaked out. But it only took about 5 minutes to go around and adjust them all (just loosen one or both screws slightly, wiggle the handle till level, tighten). I was worried that the larger holes would mean that the handles would be going crooked constantly but they didn't. The installer said this method was standard practice. I wasn't home when the handles were put in my current kitchen so I'm not sure if they were done the same way.

Looks like he just eyeballed these

You have to put the level on the drawer face. It could be the pulls are drilled perfectly and the drawer front is out. This is why you always make a drilling jig out of scraps and hot melt glue. No measuring, no screw-ups.

If the holes aren't drilled too large, this could be an easy fix.

I had the same thing happen on cabinet doors. I have the same picture with a level to show the difference. The company ordered new doors no questions asked.