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