freelance jobs Korea labor office foreign workers Korea resigning job korea foreign worker side job korea work visa korea rules foreign worker ghosted Korea workplace change Korea foreigner jobs Seoul job change visa korea process foreign worker korea immigration reporting steps visa reporting timing Korea E-7 visa Korea JobKorea XpatJobs severance pay Korea employer no response Korea foreign worker job change korea employment visa unpaid severance Korea part-time jobs Korea expat career Korea fired in Korea visa LinkedIn Korea unpaid wages foreigner Korea jobs in Korea for foreigners work visa korea foreign worker resignation Saramin workplace change reporting Korea foreign worker job change Korea Seoul Global Center Korea job platforms labor rights foreigners Korea foreign worker Korea foreign worker job change korea foreign employment law korea employer shutdown foreign worker Korea visa reporting deadline Korea change job korea visa foreign worker unsafe work Korea KOTRA job fair work visa status foreign worker mistakes Korea Kowork teaching jobs Korea Korea job search guide job termination Korea foreigner company closed Korea visa e7 visa job change korea unpaid wages Korea English jobs Korea work in South Korea 2025 unpaid salary Korea foreigner retirement pay Korea non-teaching jobs Korea foreign worker reporting delay Korea quitting job Korea foreigner foreign worker visa korea rules job change korea immigration work compliance foreign worker severance Korea labor office Korea labor office communication Korea visa sponsorship Korea visa violation part time korea notice period korea salary not paid Korea Korean labor law foreigners