Rakuten Viber is one of the most popular and downloaded apps in the world. Working with us provides a unique opportunity to influence hundreds of millions of our users and to be part of the journey that makes us a super-app. Our mission is to make people’s lives easier by enabling meaningful connections, from precious moments with family and friends, through managing business relationships to pursuing their passions.

We are looking for a highly skilled Senior Data Analyst with strong technical expertise and a passion for analyzing and optimizing mobile app advertising performance. The ideal candidate will have extensive experience in data analysis, A/B testing, and working with causality models to drive actionable insights.

If you're passionate about the ad-tech world, data analysis, and driving business growth through insights, we’d love to hear from you!

Responsibilities:

• Identify improvement areas through data analysis, aligned with the company’s strategic vision and goals.
• Collaborate with cross-functional teams to translate data findings into business strategies.
• Define, conduct and analyze A/B tests to evaluate the effectiveness of different product initiatives.
• Developing and monitor dashboards and reports that provide visibility into platform health, user behavior, and key usage trends for stakeholders.
  
  

Requirements:

• 8+ years of experience in data analysis with proven business impact – preferably in the mobile apps market.
• Strong expertise in SQL, Python, and data visualization tools (Tableau, Looker, Matplotlib).
• Experience designing and analyzing A/B tests.
• Familiarity with causality models for identifying relationships in data.
  
  

Advantages:

• Experience managing a team or mentoring junior analysts – strong advantage.
• Implemented linear and tree-based models for in-depth analysis.
• Strong story-telling and presentation skills