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