MercorPosted 4 Aug 2026

In-House Counsel (Japan)

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Pay

$140–150/hr

Work

Remote · Contract · Japan (remote)

Experience

5+ years

Eligibility

JPN, HKG

Field

Law

Skills

Japanese LawCommercial LawContract LawIn-House Legal CounselLegal AI EvaluationLLM EvaluationRubric-Based Evaluation

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About this role

Mercor is partnering with a leading legal AI company to benchmark how well AI systems answer real questions of Japanese law. We are hiring experienced in-house counsel to serve as expert reviewers — running the same prompts through two AI platforms, comparing the answers, and scoring them against a standardized rubric.

What you'll do

  • Run the same set of prompts across two AI (LLM) platforms
  • Compare the outputs from both platforms side by side
  • Score each response against a standardized rubric we provide
  • Submit concise written feedback for every evaluation

Requirements

  • 5+ years as in-house legal counsel practising in Japan
  • Strong command of Japanese law, especially commercial and contract matters
  • Sharp attention to detail and precise written communication
  • Able to work independently to a rubric and to deadlines

Logistics

  • Initial commitment: ~10 hours, with strong potential for more
  • Confidentiality: all work is covered by NDA

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