visa reporting timing Korea visa violation part time korea Saramin non-teaching jobs Korea work in South Korea 2025 visa reporting deadline Korea XpatJobs JobKorea notice period korea korea employment visa workplace change reporting Korea foreign worker employer shutdown foreign worker Korea labor rights foreigners Korea fired in Korea visa work visa korea rules jobs in Korea for foreigners Korea job search guide foreigner jobs Seoul e7 visa job change korea freelance jobs Korea foreign worker job change work visa status foreign worker resignation foreign worker side job korea Seoul Global Center resigning job korea LinkedIn Korea labor office foreign workers Korea visa sponsorship Korea foreign worker reporting delay Korea labor office communication Korea foreign employment law korea foreign worker mistakes Korea unpaid wages foreigner Korea job termination Korea foreigner employer no response Korea change job korea visa Kowork English jobs Korea work visa korea quitting job Korea foreigner part-time jobs Korea foreign worker job change korea KOTRA job fair unpaid salary Korea foreigner foreign worker unsafe work Korea expat career Korea company closed Korea visa Korea job platforms teaching jobs Korea foreign worker ghosted Korea