The ones who clean during the day are the cart attendants. They do have an overnight clean up crew they hire, but i don't know the company. I've only come across them in passing back when I worked at target.
Well, after doing some brief research, I see the job titles marked "Team Leader" refers to management positions, whereas titles marked "Team Member" refers to the common staff you'll see on the floor at Target. There aren't any janitors per say, however, when there's a mess to clean up the Team Member will handle it. Hope this helps.
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