私は国内で英語を使う仕事に就きたいです。って英語でなんて言うの？

I would like to work abroad using English, especially in Japan.
Work abroad – working in another country other than your own.
I would like – is a polite sentence starter which is best to use if in a formal situation.

I’m looking to work in Japan where I can use my English skills.
Clearly stating where you’d like to work and what type of occupation.
I’m looking – you are in search of a job in Japan.

Any of these expressions adequately clarifies the intention and basis of your job search.

A) I would like to find a job in Japan where it requires me to use my English skills daily.
*Find-discover or perceive by chance or unexpectedly.
Example-"Lindsey looked up to find Niall watching her"
*Job-a paid position of regular employment.
Example-"the scheme could create 200 jobs"
*Requires-need for a particular purpose.
Example-"three patients required operations"
*Skills -the ability to do something well; expertise.
Example-"difficult work, taking great skill"
*Daily -done, produced, or occurring every day or every weekday.
Example-"a daily newspaper"

B) I want to find a Job in Japan that uses English as their first Language.
*Want-have a desire to possess or do (something); wish for.
Example-"I want an apple"
*Their-belonging to or associated with the people or things previously mentioned or easily identified.
Example-"parents keen to help their children"
*First language-a person's native language.
Example-"she speaks English as her first language"

I hope this helps :-)

*I hope i get a job that requires a person who's English proficient in Japan. - Proficient means to be skillful.
Example Sentences:
She's proficient in two langues English and French.
This job requires a person whose proficient in computers.

Utilize: to make use of, put to use, employ, avail oneself of, have recourse to, to bring into service, take advantage of, exploit ;-D
'I am looking for a job in Japan, where I can utilise my excellent English skills'

My objective/goal-One can make use of either of this nouns. They are both synonyms and suggests the object of one's ambition.
put to use-A common phrase that describes the employment or use of something in a very beneficial or productive way.
aspire-A verb ones again describing one's hopes and dreams in a positive way.
implement t-A verb that once again describes putting one's plans into effect.