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