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