Are there any jobs on this forum other than being an escrow agent, in a signature campaign, manager of a signature campaign or having your own business?
Basically what you have mentioned are the jobs that can be found on this forum, rather, they are the sources of income available here. If you are looking for jobs that could earn you income in terms of bitcoin, then you can look for xbtfreelancer. People normally post freelance jobs there and they pay in Bitcoins.