Bilingual Japanese Generalist Evaluator Expert

Mercor is seeking native Japanese speakers with exceptional writing skills to contribute to a high-impact AI research project with a leading lab. Freelancers will author Japanese/English prompt–golden answer pairs that train and evaluate advanced language models. This is a short-term, flexible opportunity for professionals who combine language mastery, strong critical thinking, and a knack for instructional clarity. Ideal for those who enjoy distilling complex concepts into well-crafted, culturally grounded Japanese text while maintaining technical precision in English.

Job Details

Multilingual Prompt Design & Optimization:

Create detailed prompts in Japanese and/or English with multiple constraints and instructions, ensuring natural phrasing and real-world relevance for Japanese-speaking users.

Define and Document Evaluation Standards:

Establish high-level expectations for correct responses in Japanese consumer contexts, and develop comprehensive rubrics that account for linguistic nuance, tone, and cultural conventions.

Model Testing and Grading (Bilingual):

Run prompts through models and assess preliminary outputs for accuracy, fluency, and cultural fit in Japanese, comparing results against English where needed.

Benchmarking & Quality Assurance:

Collaborate in QA review processes to ensure prompt tasks and rubrics meet rigor—maintaining consistency and reliability across Japanese-language benchmarks before integration into official evaluations.

Minimum Qualifications

• Native-level fluency in Japanese (written) with strong reading/writing ability in English.

• BS or BA from a reputable institution (completed or in progress).

• Strong writing and critical thinking skills.

• Ability to work independently and meet deadlines.

• Significant familiarity with ChatGPT or similar tools for personal decision-making, hobbies, or general interests.

• Based in Japan (or able to reliably produce Japan-specific, culturally accurate Japanese).

Preferred Qualifications

• Experience in teaching, research, editing, or academic writing.

• Experience creating evaluation criteria, rubrics, or grading guidelines.

• Familiarity with LLMs, prompting, or model evaluation (helpful but not required).

Application & Onboarding Process

• Complete an AI-led interview (about 15 minutes).

• If approved, complete a paid assessment focused on writing and rubric creation

• Then, if selected, you will be invited to work on the project.

More Details About This Role

• Expect to contribute at least 20 hours per week.

• Expect a commitment of around 2+ months.

• You’ll be working in a structured project environment with clear goals and tools.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.