I am an EE turned Software Engineer. I prefer programming low level. Most software developers classically trained that I know do not want to operate at this level they want apis to call. So for me it is a win win, I create the low level driver and api for them to use. There is a "new" degree, at least new since I went to college, called Computer Engineer. Hmm, it might be an electrical engineering degree not computer science, but it is a nice mix of software and digital hardware basics. The individuals that I have worked with from this field are much more comfortable with low level.
If the individual is not comfortable or willing then place them somewhere where they are comfortable. Let them do documentation or work on the user interface. If all of the work at the company requires low level work then this individual needs to do it or find another job. Dont sugar coat it.
I also think they will enjoy it once they get over the hump, the freedom you have at that level, not hindered by operating systems, etc. Recently I witnessed a few co-workers experience for the first time seeing their software run under simulation. Every net within the processor and other on chip peripherals. No you dont have a table on a gui (debugger) showing the current state of the memory, you have to look at the memory bus, look for the address you are interested in, look for a read or write signal and the data bus. I worry about the day that silicon arrives and they no longer have this level of visibility. Will be like an addict in detox.