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