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