Increasing rank on bitcointalk and joining in bounties or signature campaigns cannot be considered as job because the rewards are so little and not permanent but if you are having some skills to provide some kind of service then it will be one of your permanent asset.
Rewards are little for some people, who live in countries where you can earn even with simple jobs. But countries where
minimal wager for month is under 100$, here you can earn twice as much with good rank and good signature campaign.
But to have better rank and to be accepted in good campaign you need a lot of work to get those merits. You need to be
outstanding in something, and if you have skills, you can be highly rewarded for that.