Teachers interested in accepting this challenge will need certification as a high school teacher in Taiwan and a TOFFEL score above 213.


Is it right to replace "certification" in the above with "a certificate?" Thanks.
Only if you rearrange things a bit

..will need a high school teacher certificate...
certification may or may not be equivalent with just having a certificate, it could be more than that
certification: action to certify that someone satisfy some requirements
Teachers: We supply a list of EFL job vacancies
Thanks, Nona.

By the way, does "a certicate of a high school teacher" do the trick?
No, not really.
Site Hint: Check out our list of pronunciation videos.
 Marius Hancu's reply was promoted to an answer.