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