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