Ji Su Hiatt
Currently building at Visa. UC Berkeley Haas MBA candidate. Based in SF.
More about meBuilding a shopping agent to demonstrate the Visa Intelligent Commerce APIs and to decrease developer time to activation.
Cut partner onboarding from a multi-week, sales-led process to minutes with a sandbox environment and self-service sign-up.
Made fund and asset performance legible at every level of detail, improving sentiment among the advanced investors driving the largest investments.
Lifted repayment rates, retention, and credit usage through a mobile app redesign that raised the app store rating from 2.8 to 4.9 stars.
Delivered designs to launch Escrow Express, generating +$100M in deposits in two weeks, 65% better user efficiency, and 4,500 back-office hours saved annually.
© 2026 Ji Su Hiatt.
Inspired by daily walks through the park and The Hidden Life of Trees by Peter Wohlleben
