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