plus, is there any additional payment for working on weekends? are you using long/short week cycle?

according to the rules of the local virtual market and given the type of position, there are several important information missing:

price per hour (especially important with your company, since bohemia bagel and little glen are infamous for paying low wages)
type of employment (especially important with your company, since bohemia bagel and little glen are infamous for not paying any insurance)
and
tipping policy and the system of sharing tips among the people working on the shift.