That's tideous task but judging by what you wrote, you probably already have previous experiences doing that? Can we see those on a list?
Also, if you want to be hire by reputable managers here, I think you should build up your reputation first. It is needed because you will be handed with the task and ability to update/edit the bounty campaign spreadsheets. No bounty manager would want to have someone messing up the spreadsheets and cheating for their own goal.