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This listing was closed on Jul 19, 2026.
Browse Open JobsData Scientist - AI Lab (AILAB)
Summary by AIEngineer.careers
Data Scientist - AI Lab (AILAB) is a AI Engineer role (full-time). with Rakuten. in 広域東京エリア, JP. Imported listing (source: jp.linkedin.com). Apply on the employer's site (jp.linkedin.com).
Imported listing (source: jp.linkedin.com) · Apply on jp.linkedin.com
広域東京エリア · JP
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Full-time
MID
The sections below reproduce the third-party job description for reference. AIEngineer.careers does not write or control this text.
Imported job description
Sourced from jp.linkedin.com
Rakuten AI Lab seeks a Data Scientist to improve its AI companion through data analysis and applied research. The role involves analyzing user signals, conducting experiments, and collaborating with engineers to enhance assistant quality. This position is based in Tokyo, Japan.
Responsibilities
- Analyze assistant interactions and internal evaluations to identify improvement opportunities.
- Generate data-driven insights to guide product development and feature prioritization.
- Conduct research to improve agent architecture and user intent understanding.
- Design and execute experiments, identifying metrics to evaluate impact.
- Collaborate with engineers to implement and productionize improvements.
- Leverage diverse datasets across Rakuten's ecosystem to enhance assistant capabilities.
- Communicate findings and contribute to research and product decisions.
Requirements
- Over 3 years experience in data science, machine learning, or related field.
- Strong Python and ML skills for data processing, analysis, and prototyping.
- Proficiency in SQL and working with large-scale structured data.
Rakuten
Tokyo · JP · 5632+ employees
Rakuten is a global technology conglomerate centered around its online retail marketplace, Rakuten Ichiba. Its business operations span e-commerce, fintech, digital content, and telecommunications.
