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