company closed Korea visa notice period korea English jobs Korea foreign employment law korea resigning job korea visa sponsorship Korea Seoul Global Center XpatJobs Korea job platforms job termination Korea foreigner unpaid salary Korea foreigner work visa status visa reporting deadline Korea change job korea visa foreign worker job change quitting job Korea foreigner labor office foreign workers Korea labor office communication Korea foreigner jobs Seoul work in South Korea 2025 freelance jobs Korea foreign worker visa korea rules job change korea immigration work compliance e7 visa job change korea JobKorea unpaid wages foreigner Korea work visa korea rules expat career Korea visa reporting timing Korea part-time jobs Korea Korea job search guide job change visa korea process foreign worker korea immigration reporting steps foreign worker reporting delay Korea jobs in Korea for foreigners LinkedIn Korea fired in Korea visa foreign worker unsafe work Korea korea employment visa Saramin foreign worker resignation employer shutdown foreign worker Korea foreign worker mistakes Korea foreign worker job change korea teaching jobs Korea labor rights foreigners Korea Kowork workplace change reporting Korea foreign worker non-teaching jobs Korea KOTRA job fair visa violation part time korea foreign worker side job korea employer no response Korea work visa korea foreign worker ghosted Korea