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Jobs→株式会社mign→[Industry-Specific AI Agent] AI Engineer Creating the Future of Cities in an Elite Organization with Many PhD Holders ◆ Full-Stack Development x Cutting-Edge LLM Agent Research

[Industry-Specific AI Agent] AI Engineer Creating the Future of Cities in an Elite Organization with Many PhD Holders ◆ Full-Stack Development x Cutting-Edge LLM Agent ResearchEnglish summary from Japanese

株式会社mign

✓ Detailed
Salary
5M JPY - 10M JPY
Location
Tokyo
Job Type
Full-time
Work Style
10:00~19:00
Apply on GREEN

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

Join an elite organization with many PhD holders to develop industry-specific AI agents that are shaping the future of cities. This role involves both full-stack development and cutting-edge LLM agent research.

Must-haves

  • Experience in building architectures for multi-step reasoning, tool usage, memory, and planning.
  • Experience with prompt design, RAG, fine-tuning, and inference optimization.
  • Experience in full-stack web application development, from frontend to backend.
  • Experience in designing, implementing, testing, and releasing new features.
  • Experience in developing research prototypes and production code.
  • Ability to collaborate closely with business and engineering teams.

Nice-to-haves

  • Experience in designing offline evaluation metrics, A/B testing, and regression prevention.
  • Experience in conference presentations, paper writing, and patent applications.

Tech stack

LLMPython

About the Company

株式会社mign

Headquarters
東京都千代田区紀尾井町3-12 紀尾井町ビル11階
Visit Website
Posted2/27/2026
Updated2026/02/27
Sourcegreen