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