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