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