foreign worker severance Korea work visa korea rules expat career Korea fired in Korea visa labor office foreign workers Korea labor rights foreigners Korea korea employment visa work in South Korea 2025 Korea job platforms quitting job Korea foreigner foreigner jobs Seoul unpaid severance Korea foreign worker side job korea visa reporting deadline Korea foreign worker job change korea foreign worker Korea foreign employment law korea employer shutdown foreign worker Korea unpaid wages Korea job change visa korea process foreign worker korea immigration reporting steps foreign worker mistakes Korea visa violation part time korea foreign worker ghosted Korea work visa korea company closed Korea visa non-teaching jobs Korea jobs in Korea for foreigners resigning job korea severance pay Korea foreign worker reporting delay Korea labor office communication Korea Seoul Global Center E-7 visa Korea freelance jobs Korea JobKorea workplace change reporting Korea foreign worker unpaid salary Korea foreigner foreign worker resignation salary not paid Korea notice period korea LinkedIn Korea part-time jobs Korea teaching jobs Korea employer no response Korea foreign worker visa korea rules job change korea immigration work compliance KOTRA job fair Saramin visa reporting timing Korea labor office Korea Korean labor law foreigners workplace change Korea foreign worker job change English jobs Korea retirement pay Korea visa sponsorship Korea Kowork job termination Korea foreigner XpatJobs unpaid wages foreigner Korea e7 visa job change korea work visa status job change Korea Korea job search guide change job korea visa foreign worker unsafe work Korea