Hi, I’m Ji Su.Staff Product Designer @ Visa.

I’ve spent over a decade shaping product direction, designing experiences, and bringing them to life in code across consumer tech, enterprise platforms, developer tools, and AI agents. I’m happiest when I’m building cool stuff and coaching product teams to adopt AI-powered tools and workflows thoughtfully.

Outside of work, I love glamping, 3D printing, and collecting retro electronics.

Projects

Visa · AI Shopping AgentStaff Product Designer · 2026 Personal · Ramen QuestDesign Engineer · 2026 NMI · Component StudioSenior Product Designer · 2025 NMI · Developer OnboardingSenior Product Designer · 2025 Fundrise · Portfolio PerformanceDesign Lead · 2023 Mission Lane · Credit Card AppDesign Lead · 2021

Capital One · Escrow ManagementSenior UX Designer · 2019Reach out for info

Playground

Make a MiniGenerate your avatar Forest WalksAn explorable 3d world Plastic DNA ModelRendered based on PDB data

More about me

Projects

Visa2026

Enabling autonomous shopping with agents

Designed and built a reference shopping agent that shows Visa’s clients how to build with the Visa Intelligent Commerce APIs, with human-in-the-loop and autonomous flows. The prototype demos where Visa’s authentication fits in; the production version is for Visa clients only.

Autonomous agent design
Product Design
Design Engineering
B2B
Developer Experience

Personal2026

Interactive story about customer discovery and building the wrong thing

An interactive pixel-art story about two brothers starting a business in an enchanted forest, making questionable product decisions, and discovering what their customers actually need.

Game Design
Design Engineering
Interactive Storytelling
Teaching

NMI2025

Design studio for low-code payment components

Built a design studio on NMI’s Appearance API, so companies can create a theme once and apply it across low-code components for easy customization.

Product Design
Design Engineering
B2B
Developer Experience

NMI2025

Improving developer onboarding to payments

Cut developer onboarding from a multi-week, sales-led process to minutes with a sandbox environment and self-service sign-up.

Product Design
Design Engineering
B2B
Developer Experience

Fundrise2023

Clarifying investor portfolio performance

Made fund and asset performance legible at every level of detail, improving sentiment among the advanced investors driving the largest investments.

Product Design
Consumer Fintech

Mission Lane2021

Increasing card repayment and retention

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.

Product Design
Consumer Fintech

Capital One2019

Simplifying escrow management

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.

Product Design
B2B

Playground

Generate your avatar

Make a Mini

Turn a photo into a pixel-art portrait or a playful video game avatar.

An explorable 3d world

Forest Walks

A small, explorable world inspired by San Francisco’s Presidio.

Rendered based on PDB data

Plastic DNA Model

An old molecular model kit, reimagined in the browser using real DNA structure data.

A little more about me.

Hi! I’m Ji Su, a Staff Product Designer and technologist based in SF.

I went to grad school planning to teach biochemistry, but on a whim, signed up for my first hackathon and got a taste of product development and entrepreneurship. I’ve been designing and building products ever since.

Over the past decade, I’ve worked across consumer products, enterprise platforms, developer tools, and AI agents. I bring product thinking and hands-on technical execution together, from identifying opportunities and shaping product direction to prototyping, experimenting, and shipping working experiences in code.

Along the way, I’ve led design teams and become a trusted advisor to product and engineering partners, helping navigate ambiguity, align teams, and make better product decisions.

Teaching has also been one of the most rewarding parts of my career. I’ve coached design thinking at Capital One and helped cross-functional teams adopt new tools and workflows at NMI and Visa, including AI-assisted ways of building.

Lately, I’m exploring emerging interfaces, physical computing, spatial experiences, and how storytelling, sound, motion, and personality can make technology more engaging and delightful.

Outside of work, I enjoy glamping, exploring cities, 3D printing, stationery stores, and learning about space. I’ve also been collecting retro electronics with great designs and studying their form factors for inspiration.

Let’s talk on LinkedIn!