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  • Job Industry:ESG
  • Position:Research Scientist, Fintech LLM - Rakuten Institute of Technology Worldwide (RIT)
  • Reference No:JPNR1027980
  • Location:Japan
  • Job Description:

    - Define research goals and medium-term strategies aligned with business needs.

    - Design, implement, and evaluate LLM-based algorithms to address key challenges in fintech services.

    - Collaborate with product, engineering, and compliance teams to validate and refine solutions.

    - Prototype novel approaches and support their integration into production systems.

    - Mentor junior researchers and contribute to a collaborative research culture.

    - Contribute to scientific communities via publications, patents, and conference participation. 

  • Requirement:

    Mandatory Qualifications:

    - Ph.D. in Computer Science, NLP, Machine Learning, or a related field; or equivalent practical experience.

    - Proficiency in Python and experience with ML/LLM frameworks (e.g., HuggingFace Transformers, OpenAI API, LangChain).

    - Solid understanding of LLM architectures, prompt engineering, and fine-tuning techniques.

    - Ability to work independently, communicate research clearly, and collaborate in crossfunctional teams.

    - Familiarity with Unix/Linux development environments and version control (e.g., Git).

    - Strong interest in applying LLMs to structured/unstructured financial data. Desired Qualifications:

    - Track record of publications or open-source contributions in NLP or LLM research.

    - Experience with instruction tuning, LoRA, or retrieval-based architectures.

    - Experience with financial data (e.g., credit card transactions, financial documents, compliance workflows, financial markets).

    - Ability to communicate in Japanese with product or business teams.

    - Experience managing or mentoring junior researchers.

    - Experience optimizing LLM applications for cost, latency, or accuracy in production settings.

    Other Information: 

    Additional information on English Qualification English: Fluent

  • Remarks:
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