I don't have a strong opinion on job postings here, but my employer also happens to have two embedded PPC Linux kernel developer openings. I posted them to one of the Chicago area Linux users group lists, but I didn't post them here because I assumed it might be construed as off-topic.
On the other hand, a couple weeks ago, proclus at gnu-darwin.org posted a very long, meandering political statement, most of which seemed to have very little to do with PowerPC Linux and I didn't notice anyone complain on these lists. (Which is just as well since my objection off-list resulted only in a long pointless argument in which it became clear that rational debate would get me nowhere.) Should I post our embedded PPC kernel related work openings here? --Brad