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