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