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