E2 Visa - Teaching visa for public and private schools in South Korea
Mandatory requirements for obtaining an E2 visa with Korean Immigration
Must speak English as your native language
Have obtained your bachelors degree from an English speaking country
Must have a Korean employer or school willing to hire sponsor your stay
Must possess a valid passport from: US, CA, UK, AS, NZ, IR, SA.

E1 Visa - Teaching visa for university and college level instructors
Mandatory requirements for obtaining an E1 visa with Korean Immigration
Must speak English as your native language
Have obtained your bachelors degree from an English speaking country
Must have a Korean employer or school willing to hire sponsor your stay
Must possess a valid passport from: US, CA, UK, AS, NZ, IR, SA.

F4 Visa - Work visa for Kyopos (overseas Korean nationals)
Mandatory requirements for obtaining an F4 visa with Korean Immigration
Any overseas Korean national (must provide the consulate with proper documentation stating Korean heritage)

E5 Visa - Professional employee work visa for Korean corporations
Mandatory requirements for obtaining an E5 visa with Korean Immigration
Requirements for this visa depend on the organization you are obtaining employment with

F3 Visa - Extended tourist visa for family members
Mandatory requirements for obtaining an F3 visa with Korean Immigration
Must have a direct family member with a legal working visa (E2, E1, F4, E5 visas)
People who are not planning on working while in South Korea

For information on other work visa's outside of the English industry please visit the following link:
http://www.gone2korea.com/visas.html