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Who this role suits
Native or near-native speakers who want flexible remote work built on their language skills. Usually no degree is needed.
Full job description
Mercor is seeking experienced Japanese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Japanese-language tasks and on curating high-quality Japanese linguistic data to train and improve the model's understanding and generation capabilities.
Key Responsibilities:
- Evaluate the quality and accuracy of LLM-generated Japanese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
- Edit, refine, or rewrite Japanese content to meet linguistic and cultural standards.
- Annotate Japanese text for grammatical, syntactic, and semantic features.
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
You're a strong fit if you have:
- Native or near-native fluency in Japanese, with excellent command over grammar, syntax, and stylistics.
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Japanese.
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
- Interest in AI and LLM-driven language technologies (preferred but not required).
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
- Clear communication skills and experience working in distributed, remote teams.
Why Join
- Contribute to cutting-edge AI research in partnership with a leading research lab.
- Work on high-impact projects that directly support the development of advanced AI systems.
- Gain hands-on exposure to state-of-the-art AI research and development.
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.
Last checked open on Oct 28, 2026. Job description provided by Mercor.
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