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