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