Of course, you can not be jobless and you can also participate in bounties (only if you have main job). Just be careful to pick a bounty so you won't get scammed.
Though, if you are keen enough to notice and understand campaigns and opportunities, you can get a decent job but the fact that these job cannot be trusted as a mainline activity that will provide you alive, I would still recommend you to find a physical job where you can rely all your physiological needs into, then just think about these bounties as support whenever there comes a time you will need funds.