I know of one Brit of a similar description (a medical retiree in his case) who makes a good living writing operators manuals and associated documentation on the RW side. Presumably there are such jobs in the US and it's generally close enough to the operational side to get a certain amount of free flying (familiarisation don't you know).
If you were FW, I'd also say sim instructor, but I've no idea if such jobs are equally available on the RW side.
G