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