What's the criteria a job being a "Hacker Job"? Currently there's ~1437 jobs on Stack Overflow Careers but only 25 are listed. Is this just a scrape of the the

What's the criteria a job being a "Hacker Job"? Currently there's ~1437 jobs on Stack Overflow Careers but only 25 are listed. Is this just a scrape of the the first page of jobs listed on: http://careers.stackoverflow.com/jobs http://careers.stackoverflow.com/jobs I did have a scan of the source code but I'm none the wiser.