Hello I need some information

Hello.. I'm new here.. I lived outside Korea but I'm very interested to work in Korea. I've been to Korea but just for a short trip. I can speak Korean and have TOPIK level 3 certificate (still manage to learn more). I have 10 years work experience in my home country. Is it possible to get an E-7 visa sponsorship without any visa available like D-2 or D-10? I'm willing to prepare any documents if needed and willing to move immediately. Any tips or what should I do first? Thank you in advance.