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