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