examinee; test taker
Refers to a person taking an examination, such as a school entrance exam, certification test, or job screening.
The number of examinees this year increased compared to last year.
Examinees should be seated at least 10 minutes before the test begins.
受験者 is the formal, official term for someone taking an exam, while 受験生 is the everyday word specifically for a student preparing for or sitting entrance exams.
interviewee
Compound of 受験 (taking an examination) and 者 (person).