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