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