By the way, you can learn to segment English shows. There are some here at Viki. 
You could also caption for English shows, typing in English, into blanks too.
Segmenting - well, if you get sufficiently trained and have a knack for it, you can do it for languages you are unlikely to speak… It is easier (generally) though when you learn a few things about the language to improve the skill to make the subtitles better by phrasing things as sentences or knowing what a word is or isn’t.
So consider applying for the Ninja Academy, try the Sandbox, and if you find you are doing well, complete the full diploma after sandbox - that’s 5 levels - and you will then be qualified to work ANY drama you will probably want to work…and get offers for okay, every drama that needs help.
That’s a lot of dramas.
Think it over, look at their site,and ask questions. Read their excellent documentation - and see how you feel. Only you can answer if you are willing to learn it and it is not easy.
But it is pretty cool and yes, without the segments…the dramas go out with no subs. The world then cannot share them!
sigh. My humor has only halfway returned, so I threw on this old thing…
Crouching Dieter, Hidden Donut