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