Jobs earn you gold per job you do. SO SORRY to those that are staff members, but you won't get any big bonus for updating. Just like I don't. But here are the jobs you may do:

Assassin - your own price, please not very low, if you get caught assassinating, their team members may just team up on you.
Body Guard - your own price
Item Maker - makes items 500 gold per item i like
Accessory Maker - makes accessories, 500 gold per item i like
Trainer Maker - I need some GT Trainers if there are any
Job Maker - 500 gold per job I like
Spy - can be in two gangs at once, if caught, you can't refuse a death match, even if in training. You may pass info and charge money for your information.