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