This is powered by adverts.ie as explained by Dav in his announcement here.
There is a boards feedback thread here where you can ask questions about how it works from a boards.ie perspective.
If you have any questions about how it works on the adverts.ie end or if you want to post suggestions for a new category in the jobs section that you think would be useful then please post it in this thread.
The rules for posting job advertisements are detailed here: http://www.adverts.ie/help/job-posting-rules
Happy job hunting and good luck!
Steve.
