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INDEX / 01

Shipped product work and independent building.

Deep product cases and concise leadership snapshots across fintech, B2B SaaS, and an independently built iPhone product.

01

Projects at PayPay

Shipped financial experiences across P2P transfers, personal finance, and a shared design system—while leading six designers.

Original PayPay peer-to-peer product screens showing contacts, amount entry, transfer confirmation, and QR receiving
02

Reppro

A strength-training app that makes set logging almost invisible—and turns training history into the next decision.

A lifter checks Reppro's focused workout view with one hand beside a squat rack
03

Kyash Product Experience

Unified app-wide UI and UX while leading a four-person product design team.

Editorial Kyash balance-investment flow showing the wallet home, performance chart, and two add-funds states connected from left to right
04

Sales Marker Product Portfolio

Leading ten people across five products while rebuilding the design system and AI-assisted workflow.

Editorial system view composed from public Sales Marker, Recruit Marker, Marketing Marker, and Orcha product interfaces