On November 1st, 2016 the jobs.code4lib.org site was closed. You can find a static snapshot and web archive (WARC) of the website at the Internet Archive. This includes some easy to use JSON data for the job postings, employers, subjects and locations. In addition the code that made the site available can be found on Github.
The site closed because it was built around Google's Freebase service for tagging employers, locations and subjects. An attempt was made to move it over to Google's new Knowledge Graph API or Wikidata, but the site maintainer Ed Summers was unable to sustain this work. More context for why the website was closed can be found in this Github issue.
If you have ideas for bringing a similar site online at this hostname please start up a conversation in the the code4lib IRC channel or Slack.