OCLUG has a jobs notification space on their web site:
http://oclug.on.ca
(on the right between announcements and Wiki and Ticket Changes)
It is self-administered. Save the url you get from creating the post
so you can cancel it later, if you need to.
You could post to the linux-consult mailing list (ottawa based).
Linux-consult [ at ] list [ dot ] flora [ dot ] ca
http://list.flora.ca/mailman/listinfo/linux-consult
If your linux distro is Debian based, you could post to the
debian-jobs mailing list (world-wide).
debian-jobs [ at ] lists [ dot ] debian [ dot ] org
http://lists.debian.org
bjb