請代為翻譯成英文

Hi,

I have not heard from you for a while. How are you? Are you still working at XXX? I am thinking to change job, wonder if there are any job vacancy at your company?

Hi,haonai no contact, we are still this company work? I would now like to change jobs, there are no good on?

Hi,
have not got in touch with for a log time,
still work in this company now?
I want to change a job now,
whether there are good introductions?

Hi, we have no contact for a long time. Are you still work in the same
company? I would like to change my career, do you have any good idea?