copy editor
US /ˈkɑː.pi ˌed.ɪ.tər/
UK /ˈkɑː.pi ˌed.ɪ.tər/

1.
a person who checks and corrects text before it is published
:
•
The manuscript was sent to the copy editor for final review.
•
A good copy editor ensures clarity, accuracy, and consistency in writing.