The impression I'm getting from the general market is that it's a
little thin everywhere. In Charlotte, in particular, I know of only
one consultancy that uses Ruby as a standard part of their repertoire,
and I'm not sure if they're currently hiring.
Wish I could be of more help. Perhaps over time we'll get the group
growing strongly enough that there won't be any doubt for those
looking for work.
Cheers,
Jim