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