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