1.
experienced person; someone with experience
A person who has prior experience in a particular field, activity, or situation. Frequently used in job listings and recruitment.
経験者優遇。
Experienced applicants preferred.
経験者から話を聞くのが一番参考になる。
Hearing from someone with experience is the most helpful reference.
この仕事は未経験者でも応募できるが、経験者のほうが採用されやすい。
Even those without experience can apply for this job, but those with experience are more likely to be hired.
Very common in job advertisements and recruitment. Common collocations: 経験者優遇 (experienced applicants preferred — standard phrase in job ads), 経験者歓迎 (experienced applicants welcome), 経験者募集 (seeking experienced applicants). The opposite is 未経験者 (inexperienced person). The suffix ～者 (person) combines productively: 初心者 (beginner), 担当者 (person in charge).