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