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