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