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