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