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