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