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