noun
expert; skilled person; veteran
Refers to someone who has acquired high proficiency through long practice or experience. Neutral and widely applicable across fields.
彼はプログラミングの熟練者だ。
He is an expert in programming.
この作業には熟練者が必要です。
This task requires a skilled person.
専門家 emphasizes specialized knowledge or a professional role, whereas 熟練者 focuses on skill gained through experience.
Compound of 熟練 (jukuren, 'skill, proficiency') + 者 (sha, 'person'). The word follows a common pattern for forming agent nouns.