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