MiAI Law

AI Research Scientist – Legal AI & Multimodal NLP
This role is based on-site in Tokyo, Japan and will be working directly with Fred Almeida.

About MiAI Law

MiAI Law is building the future of AI-powered legal research, delivering deep NLP models and AI-driven search technology dedicated to bridging the technology gap for lawyers by delivering advanced legal research tools and custom AI solutions. The company’s mission is to empower lawyers to provide efficient, affordable, and high-quality legal services while upholding data privacy and security standards. MiAI Law offers bespoke solutions tailored to individual client needs and scalable options for diverse requirements to enhance efficiency and productivity in the legal sector. We are seeking an AI Research Scientist specializing in Legal NLP & Multimodal AI to drive innovation in contract analysis, legal decision-making, and AI-powered case assessment.

The Role:

As an AI Research Scientist at MiAI Law, you will:
  • Develop and fine-tune domain-specific LLMs for legal document analysis.
  • Implement multimodal AI systems, integrating NLP with vision-based document intelligence.
  • Conduct research on AI reasoning, fact validation, and uncertainty quantification for legal AI.
  • Optimize knowledge extraction & retrieval pipelines to enhance legal search and decision automation.
  • Collaborate with AI engineers, legal professionals, and backend teams to integrate models into production.

Key Responsibilities

Legal NLP Model Development
  • Fine-tune LLMs (e.g., GPT, Longformer) for contract analysis, clause classification, and legal reasoning.
  • Implement Legal-adapted Transformer models for improved text understanding.
  • Explore semantic retrieval methods for legal precedents and case law.
Multimodal AI for Legal Documents
  • Integrate Vision Transformers (Florence-2, ViT) for scanned contract analysis.
  • Develop OCR-enhanced NLP pipelines for multi-format legal text processing.
  • Leverage table detection, signature verification, and document layout analysis to improve legal workflows.
Research & Experimentation
  • Conduct AI-driven legal risk assessment research.
  • Implement uncertainty quantification techniques (Bayesian inference, Monte Carlo dropout) to assess AI reliability.
  • Publish research findings and contribute to open-source legal AI projects.

Requirements: Who You Are

Technical Skills:
  • PhD/MSc in AI, NLP, Machine Learning, or related fields.
  • Strong experience with Hugging Face Transformers, PyTorch, TensorFlow, LangChain.
  • Proficiency in document intelligence, semantic search, and knowledge graphs.
  • Prior experience in fine-tuning transformer models for domain adaptation.
  • Strong background in legal AI research, case law analysis, or NLP for regulations & contracts.
Soft Skills & Culture Fit:
  • Passion for advancing AI in the legal sector.
  • Ability to work collaboratively with AI engineers, lawyers, and backend teams.
  • Strong research mindset with the ability to translate state-of-the-art AI techniques into production models.
  • Excellent communication and presentation skills to explain AI-driven legal insights.

Why Join MiAI Law?

  • Work on groundbreaking AI research in legal tech.
  • Collaborate with top researchers & legal professionals in Tokyo.
  • Publish and contribute to legal AI advancements.
  • Shape the future of AI-powered legal reasoning.
  • Be part of an exciting, innovative Legaltech AI start-up that values collaboration and initiative.
  • Opportunity to work closely with senior leadership and contribute to the success of MiAI and key projects.

HOW TO APPLY

Please submit your application using the form below, and be sure to include:
  • Your resume
  • A link to your GitHub profile
  • And a brief outline of how your skills and experience align with this role
We look forward to your application!

Our Culture

At MiAI Law, our culture is the foundation of our success. We’re a high-performance, 
innovation-driven startup where every team member feels valued and empowered.

Join Us

Are you passionate about legal tech, excited by challenges, and ready to make a real impact?
If so, MiAI Law could be the place for you to thrive.

Submit your application

    Security validation*
    MiAI Law is committed to protecting your information. Your information will be used in accordance with the applicable data privacy law, our internal policies and our privacy policy. As MiAI Law is a global organisation, your information may be stored and processed by MiAI Law and its affiliates in countries outside your country of residence, but wherever your information is processed, we will handle it with the same care and respect for your privacy.