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