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