Hello, I'm an engineer for KORAIL, in Korea. I'm writing and managing lots of manuals for repairing KTX train over 10 years.

And I want to use English language and Programming language, therefore I'm a student of Udemy, I'm learning more than 40 courses.

I am managing a web site and making android apps for the internal purpose of our company to give useful information needed for repairing KTX trains.

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