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