caseyhou

Hello! I’m Casey

Senior Product Designer with 6 years of experience across fintech and consumer products. Currently at Ria Money Transfer, designing onboarding, authentication, and cross-border transactions. Previously, I worked at digital agencies and studied HCI at Berkeley.

Ria Authentication Redesign

Mar 2026 – May 2026

I led the authentication experience redesign, replacing separate signup and login flows with a single recognition-first entry point that eliminated 69K monthly “Account already exists” errors and reduced sign-in from minutes to seconds.

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Euronet Design System

Jun 2025 – Oct 2025

I unified six fragmented UI libraries into one design system serving Ria and Xe across web and mobile. Beyond the components themselves, I built the governance workflow and design-engineering feedback loop that cut component delivery from months to days.

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Ria Cash Pickup

May 2026 – Present

Cash pickup is one of Ria’s highest-impact money transfer services, serving millions of transactions, yet the experience hadn’t evolved alongside the business. As Ria expands pickup partners across major corridors, I’m leading the redesign end to end, from early discovery through design and prototyping.

Currently building

Human-AI Agent HCI Research

Dec 2024 – May 2025

Back in late 2024, when AI agents were just starting to act on users’ behalf, I led design on a four-person research team asking: why do users still feel like they’re doing the work? We ran co-design sessions using OpenAI’s Operator and proposed interaction patterns for the communication gaps.

Read the paper

Before Ria, I shipped agency work across fintech, travel, and media.

Cathay Asset Management

Easy Wallet (e-Pay)

Shin Kong
Credit Card App

iCash Pay (e-Pay)

Go Car Voting Site

ChicTrip Trip Planner

Lately, I’ve been exploring AI and new ways of working.

Experimental projects

Moving through memory

A gesture-based interface where hand movement controls a cursor, revealing photos as it moves across the screen. The grid maps my life across Taiwan and the U.S., alone and with others. Navigating the interface feels like navigating memory!

Follow any thread

Select any part of an AI response and branch off into a side conversation. A side thread opens up so you can go deeper, without losing the main conversation.

Make me a comic

Write a story, pick your panels, and it becomes a little ASCII comic. Or just let Claude make something up for you. I use it for journaling, or to send friends tiny birthday comics <3

New ways of working

Research

When I’m diagnosing problems, I pull funnel data and session recordings into Claude through MCPs, so I can cross-reference the two, helping me quickly figure out which signal matters and what to investigate next.

Tools: Claude, Notebook LLM, Amplitude (via MCP)

Pressure-Testing Logic

I start by mapping the core logic myself, then use Claude to stress-test it. I’ll ask it to challenge my assumptions or surface edge cases I haven’t considered. Once the logic feels solid, it also helps me quickly visualize the flow, so I can align with PMs and engineers early.

Tools: Claude, FigJam (via Claude)

Prototyping

I build key screens in Figma, then use Claude Code through Figma MCP to turn them into working prototypes. This shortens the loop between idea and validation. I can now build and feel how interactions actually behave on my phone, in a fraction of the time it used to take.

Tools: Claude Code, Cursor, Codex, Expo, Simulator

Testing

I iterate directly in code and submit PRs for review. This reduces back-and-forth between design and engineering, leading to higher implementation quality and more refined interaction details.

Tools: Claude Code, Cursor, GitHub

About me