Senior Product Designer in Japan
I design fintech, e-commerce, and consumer products at Paidy, Philip Morris Japan, and Rakuten—turning complex journeys into clear experiences.
Selected results: 61% more Passkey adoption and 15.28% higher e-commerce conversion.
Paidy (PayPal Group)
FEATURED CASE STUDY · FINTECH AUTHENTICATION
Increasing Passkey Adoption Through Behavioral UX
Progressive onboarding increased adoption by 61% and reduced SMS authentication costs by 30%.
SYSTEMS & SCALE · MERCHANT PLATFORM
Scaling the Merchant Dashboard Experience
Reorganized navigation around merchant workflows and created a reusable component foundation for future growth.
PROCESS LEADERSHIP · DESIGN OPERATIONS
Creating a Scalable UX Validation Framework
Aligned Design, Product, and Engineering around a repeatable Identify → Verify → Goal → Validate process.
Philip Morris Japan
GROWTH & DESIGN SYSTEMS · E-COMMERCE
Localizing IQOSPHERE for Japan
Research, workshops, and scalable components contributed to 15.28% higher conversion, 29.48% more returning users, and a 3.25% NPS improvement.
Earlier Product Work — Rakuten
Rakuten Travel
Simplified the search and booking journey, reduced navigation friction, and achieved an 8.3-point improvement in System Usability Scale during usability testing.
Weekend+
Led the experience from discovery research and design-sprint facilitation through prototyping and delivery, helping launch a new mobile travel-planning experience in 2019.
I enjoy solving complex product problems where user behavior, business goals, and technology intersect.
If you're building products that require thoughtful UX strategy and measurable impact, I'd love to connect.