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