Data Scientist (Ads)

Location: Hybrid role based in Shibuya, Tokyo, Japan

Company

hirify.global is a global information and news discovery company using machine-learning technology and publisher partnerships to deliver relevant news to millions of users.

What you will do

• Collaborate with Product Managers, Engineers, and Business stakeholders across Japan and the US to translate advertising strategy into hypotheses and analytical frameworks.
• Analyze advertising ecosystem data and estimate impact to identify growth opportunities while protecting the core user experience.
• Lead A/B tests and quasi-experimental evaluations, including causal inference for non-testable product features.
• Design analytical data pipelines, performance metrics, and self-serve dashboards for partner teams.
• Transform complex data into executive-ready insights that guide product roadmaps and commercial decisions.

Requirements

• Advanced SQL, including experience with technologies such as Trino, Hive, or RDS.
• Programming experience for data analysis with Python, R, or similar languages.
• Experience as an analytics lead working cross-functionally with product, engineering, or sales partners.
• Strong knowledge of online experimentation and statistical modeling.
• Business-level or higher English.
• Familiarity with online advertising or marketing.

Nice to have

• Conversational or higher Japanese, preferably JLPT N2 or above.
• Advanced degree in Mathematics, Statistics, Computer Science, or a related analytical field.
• Understanding of data engineering systems, data warehousing, Airflow, or dbt.
• Advanced knowledge of causal inference and mathematical modeling.

Culture & Benefits

• Cross-functional collaboration with product, engineering, and business teams across Japan and the US.
• Health and social insurance required by Japanese labor law.
• Annual health check.
• Visa sponsorship and overseas relocation support are available for eligible candidates.