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