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