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