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