I spend most of my time on SO, and peruse jobs.stackoverflow.com every now and then. But thanks to Meta, I occasionally pop into SF and SU while investigating a question. And so in a recent check at SU, I noticed that the jobs listing was jobs.joelonsoftware.com. So of course I went along and confirmed jobs.serverfault.com.
Now, the three do differ in the header, so that alone is reason enough to have different ones. But do they have different job listings, or are all of the jobs across all 3 the same, just possibly organized differently to cater to the audience of the particular Stack?