Working in the United States is a great way to enhance your educational experience and meet new people. You must, however, be very careful and avoid jeopardizing your non-immigrant status by engaging in employment that is unauthorized.
Students in F1 or J1 status who have the visa sponsorship of Temple University are eligible to work on-campus immediately. They are eligible to work off-campus, with written authorization, after they have been in F1 status for one academic year. J1 visa holders do not share that limitation and may, with authorization, begin off-campus employment sooner.
Individuals who have employment sponsorship through J1 Exchange Visitor or H1 non-immigrant status have additional employment options, but should discuss any opportunities that come up before making commitments with an outside organization.
A student in F1 or J1 status should never begin employment off-campus unless the student has already recieved written authorization to do so. Working without having written authorization to do so in a serious violation of USCIS regulations and will result in loss of your legal status in the U.S.