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