Junior Data Scientist

Date PostedMay 25, 2026LocationChiyoda, Tokyo, JapanCompanyDejimal IncSalaryJPY 5000K - JPY 9000KTypeit (other) - data analyst/data scientist

Job Summary

This position leverages engineering expertise to improve the sophistication, efficiency, and quality of data analysis. You will join a team operating data analysis services for financial and marketing sectors using big data sources like POS and credit card information. The role involves performing data analysis, deploying ETL pipelines, and developing analytical applications.

Responsibilities

  • Perform data analysis for institutional investors and businesses
  • Deploy data results to ETL pipelines
  • Develop and operate data tests and documentation
  • Plan functions for analytical applications

Required Skills

  • Python & SQL development
  • Data analysis and translation of requirements
  • Git version control
  • Testing and CI/CD implementation

Job Details

### Specific Job Duties - Perform data analysis to solve the challenges facing institutional investors and various business companies. - Deploy data analysis results to ETL pipelines and continuously deliver analytical value. - Develop and operate data-related tests and documentation. - Plan analytical functions for customer-facing analytical applications and perform the necessary analysis. ### Job Requirements #### Required Skills [Analysis to Solve Customer Problems] - Ability to understand customer analysis needs and translate them into analytical requirements - Ability to translate data analyst requests into development requirements - Ability to proactively propose development themes to improve analysis quality/efficiency - Practical experience in data analysis using Python [Problem Solving Through Engineering] - Python/SQL development experience - Version control using Git etc. - Improve code quality using testing and CI/CD #### Preferred Skills - Master's degree or equivalent in a field of science or engineering - Web application server-side development experience - Development experience using public clouds (e.g., AWS, GCP) - Conversational-level English proficiency - Experience managing a team of 2-5 people and achieving results as a team ### Working Conditions - Working Hours: discretionary work system - Job Contract Period: full-time employee - Holidays: Two-day weekend (Saturdays, Sundays, and holidays), paid vacation, five-day consecutive vacation, New Year's holiday, and special leave. - Workstyle: Flexible shifts, allowing office or remote work, and flexible start/end times.