Casey Hou — Product Designer

Hi, I’m Casey

Product designer who thinks in systems and finishes in details. Currently shaping cross-border transfer experiences at Ria.

✦ 6 years designing across in-house and agency, fintech and consumer products ✦

Ria Signup Redesign

Oct 2025 – Nov 2025

I led the redesign of Ria’s signup flow, auditing the existing experience, diagnosing where users were dropping off, and shipping a new version that increased conversion by 10.4% and cut completion time by 17%.

Euronet Design System

Jun 2025 – Present

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.

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

Working with AI

My workflow is still evolving. New tools show up constantly, and now part of my job is figuring out which ones actually make the work better :D

AI 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.

ClaudeNotebook LLMAmplitude (via MCP)LogRocket (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.

ClaudeFigJam (via Claude)

AI Prototype

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.

Claude CodeCursorCodexExpoSimulatorFigma (via MCP)

AI Testing

I introduced Design QA as a final quality gate after code review and functional QA. Rather than relying on checklists, I iterate directly in the code and submit PRs for review. This reduces back-and-forth, leading to higher implementation quality and more refined interaction details.

Claude CodeCursorGitHub

AI Playground

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.

During nearly 3 years at an agency, I worked on projects ranging from launched products to early-stage proposals.