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