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