Job Title, what should it be

Hi
Just wanting some advice from you all. I am getting my title changed, I've completed IATI and have a lot of acc experience. I can be either senior accounting technician or accounting specialist (accounts receivable/payable specialist). I'm not sure which is better. I've checked salaries on various job webs but still not sure. Would appreciate a bit of advice from you.

I do all accounts payable/some receivable/end of month reporting/reporting/IT/bank rec etc.

Thanks