Jobs are tasks that you and can do on the side to earn in-game cash as well as other useful items like Doctor's Notes.
To access your list of available jobs, tap on the briefcase-looking icon labeled "Jobs" from the bottom menu on your screen.
Jobs are a great way to earn cash and progress when you start playing PIMD. Please keep in mind that completing jobs depletes both your Strength AND Stamina bars.
Once you run out of these energy sources, you will have to wait for it to recover. Alternatively, you can use a Doctor's Note to speed up your recovery time!