part-time jobs Korea non-teaching jobs Korea JobKorea visa violation part time korea foreign worker unsafe work Korea labor office communication Korea foreign worker job change quitting job Korea foreigner work visa korea foreign worker job change korea labor rights foreigners Korea job termination Korea foreigner employer shutdown foreign worker Korea expat career Korea English jobs Korea company closed Korea visa unpaid wages foreigner Korea foreign worker ghosted Korea Saramin teaching jobs Korea unpaid salary Korea foreigner jobs in Korea for foreigners foreign worker mistakes Korea e7 visa job change korea visa sponsorship Korea foreign employment law korea visa reporting deadline Korea resigning job korea work visa korea rules Korea job platforms work visa status XpatJobs workplace change reporting Korea foreign worker LinkedIn Korea foreign worker visa korea rules job change korea immigration work compliance foreign worker side job korea Korea job search guide change job korea visa labor office foreign workers Korea job change visa korea process foreign worker korea immigration reporting steps Kowork foreigner jobs Seoul freelance jobs Korea korea employment visa foreign worker reporting delay Korea notice period korea KOTRA job fair fired in Korea visa employer no response Korea foreign worker resignation visa reporting timing Korea Seoul Global Center work in South Korea 2025