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