resigning job korea job termination Korea foreigner visa violation part time korea XpatJobs foreign worker resignation Seoul Global Center labor rights foreigners Korea Kowork quitting job Korea foreigner unpaid salary Korea foreigner foreign worker ghosted Korea unpaid wages foreigner Korea English jobs Korea visa sponsorship Korea labor office foreign workers Korea non-teaching jobs Korea work in South Korea 2025 work visa status foreign worker job change korea Saramin work visa korea rules freelance jobs Korea teaching jobs Korea Korea job platforms foreign worker reporting delay Korea foreign worker side job korea Korea job search guide employer shutdown foreign worker Korea korea employment visa KOTRA job fair e7 visa job change korea company closed Korea visa fired in Korea visa foreign worker job change notice period korea foreign worker unsafe work Korea foreign employment law korea change job korea visa jobs in Korea for foreigners JobKorea LinkedIn Korea visa reporting timing Korea expat career Korea foreigner jobs Seoul work visa korea employer no response Korea labor office communication Korea part-time jobs Korea foreign worker mistakes Korea