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