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