English summary for screening — check the original posting before applying.
Leverage product, business, and conversational data stored in the data platform to drive analysis, hypothesis testing, and product improvements. You will connect data insights to business value by identifying key metrics, understanding user behavior, and collaborating with business and development teams. This role actively incorporates AI tools like Claude Code into daily development and research activities for speed and quality.
Must-haves
- Experience with data extraction, processing, and analysis using SQL
- Experience with data processing and analysis using Python, or willingness to learn
- Desire to support business and product decision-making with data
- Commitment to reproducibility and accuracy in data handling
- Understanding of version control with Git, or willingness to learn
Nice-to-haves
- Experience with BI tools like Tableau or Looker
- Experience with data transformation and modeling using dbt
- Data modeling experience
- Experience designing business KPIs and analysis
- Knowledge of statistics and machine learning
- Knowledge/experience with NLP, speech processing, and LLMs
Tech stack
SQLPythonGitTableauLookerdbtFastAPIReactTypeScriptElectronGoogle CloudCloud RunCloud SQLTerraformDockerRAGContext EngineeringLangfuseLLM as a judgeSpeech ProcessingNatural Language ProcessingClaudeCodexCursorChatGPTGemini
Work style
Onsite in Osaka, Japan. Flexible working hours (08:00-21:00) with core hours (12:00-17:00). Standard 8-hour workday.
Other notes
Salary range: Monthly 364,000 - 655,000 JPY. Annual 5,000,000 - 9,000,000 JPY. Probation period of 3 months. Overtime: average 13 hours/month.