Japanese Corporate/M&A AI Evaluation Attorney

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role and the #1 platform for finding and building careers in AI training and data labeling. OpenTrain helps contributors discover specialized projects, build a professional profile, and grow a lasting portfolio of AI training work.

About AI Evaluation Work

AI training is the human side of building modern artificial intelligence. Expert reviewers assess model responses, identify weaknesses, and provide structured feedback that helps AI systems become more accurate, useful, and reliable.

• Work remotely with flexible, part-time project opportunities
• Apply your professional knowledge to cutting-edge AI systems
• Help shape how legal AI responds to real questions

The Role

OpenTrain AI is recruiting a Japanese Corporate/M&A AI Evaluation Attorney to review how effectively AI systems answer real questions of Japanese law. You will run identical prompts through two AI language-model platforms, compare their responses, and score the results using a standardized rubric.

This contractor role is listed as entry level within the project structure, while requiring at least two years of relevant law firm experience. The expected commitment is 20 or more hours per week, and the listed rate is $140–$150 per hour.

• Role type: Contractor and part-time
• Location: Japan
• Language: Japanese
• Workload: 20+ hours per week
• Pay: $140–$150 per hour

What You'll Do

You will evaluate AI-generated legal responses consistently and communicate your findings through concise written feedback. Careful comparison and reliable application of the project rubric are central to the work.

• Run a set of prompts across two AI language-model platforms
• Compare both platforms' outputs side by side
• Score each response against the provided standardized rubric
• Submit concise written feedback for every evaluation

Requirements

This role is intended for a legal professional with practical corporate, M&A, or transactional experience in Japan. You must be able to work independently, follow evaluation criteria precisely, and meet deadlines.

• At least two years of law firm experience in corporate/M&A or transactional practice
• Three or more years of relevant experience preferred
• Qualified to practice law in Japan
• Native or fluent Japanese proficiency
• Precise written communication in Japanese
• Experience evaluating or scoring work against a rubric
• Ability to work independently and meet deadlines

Why Work With OpenTrain

AI training and data-labeling work is a fast-growing part of the technology industry. By contributing your legal expertise, you can help improve specialized AI systems while building a credible portfolio of work in an emerging field.

OpenTrain gives freelancers one place to manage AI training opportunities, showcase relevant experience, and discover projects aligned with their skills. Creating an OpenTrain account is free.

• Remote work with a flexible part-time structure
• Use your Japanese corporate and M&A expertise in AI evaluation
• Build experience contributing to legal AI development