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