noun
question setter; examiner who prepares questions
Refers to the person who creates or sets questions for an exam, quiz, or test.
今回の試験の出題者は、去年と同じ先生だ。
The question setter for this exam is the same teacher as last year.
出題者の意図を考えながら問題を解く。
I solve the problems while considering the question setter's intentions.
試験官 is a proctor or examiner who supervises the test, not necessarily the one who writes the questions.
Compound of 出題 (shutsudai, 'setting a question') + 者 (sha, 'person').