Refers to a person who translates written texts professionally, often with a focus on literary or specialized works. Compare with 翻訳者, which is a more general term for anyone who translates.
She is a famous translator who has translated many novels into Japanese.
通訳 refers to interpretation (spoken), whereas 翻訳家 deals with written translation.
Compound of 翻訳 (translation) and 家 (suffix for a specialist or professional).