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