Urgent need: apply for a job by SMS in English.

Hello, my name is XXX. I'm interested in the part-time xxxX (for example, data entry) position you advertised on XXX (for example, reporter, Internet ...). I wonder if there is any vacancy in this position.

Personally, I don't like to disclose too much information. If he still goes back to recruit people, you can call again to talk.

In fact, it is better for you to call directly to ask if there are any vacancies, because you can make an appointment for an interview directly by calling to recruit people. And both sides can know a little about who the other is.