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