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