At PayPay, I lead product development for the User Growth Operations Platform in Japan. I designed and implemented Audience V2 as an independent domain, enabling AND/OR audience composition and simplifying data pipelines to eliminate Snowflake and reduce audience processing costs by approximately 50%.
I also built an AI-driven design document workflow adopted by approximately 20 engineers across multiple teams. Previously, at Amazon, I led development of a global logistics operations platform and helped reduce turnaround for most logistics exceptions from days to hours; at Baidu, I led architecture and engineering for AI Studio.

