Sara Mayuzumi
Associate Strategic Business Developer at Rakuten Group Inc. @ Rakuten
About
Trilingual (English, Arabic, Japanese) with an international background, having lived 16 years in Egypt. Graduate of Waseda University (SPSE). Experienced in scaling digital services, improving operations, and driving efficiency through automation and process design.
Japan
Tokyo
Marketing & Advertising
Business Process Improvement, Operational Risk Management, Automation, Project Management
Experience
Associate Strategic Business Developer at Rakuten Group Inc.
Rakuten
Tokyo, Japan
• Scaled digital service from 100K to 3.5M+ users through end-to-end operations ownership • Implemented risk controls ensuring accuracy in high-volume operations & reporting • Developed automation tools (Python, JS, VBA), saving 10+ hours/month • Led process redesign initiatives to improve efficiency and execution speed • Partnered cross-functionally to drive KPI delivery
Education
Waseda University
Political Science and Economics
Sara Mayuzumi's Contact Information
Phone
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