noun
A person who applies for a job, competition, program, etc. Neutral term.
応募者は履歴書を提出してください。
Applicants should submit their résumé.
多数の応募者の中から選ばれた
They were chosen from among many applicants.
出願者 is specifically for formal applications, especially to schools or official examinations; 応募者 covers jobs, contests, and general applications.
Compound of 応募 (application) + 者 (person).