Karina Su - Portfolio

Karina Su · Senior Product Designer · Design Technologist

I pair strong visual design with AI-powered building to take products from 0 to 1, across fintech, enterprise and AI.

Enterprise · UX designerBinance fraud detection

Turned a dense, table-based fraud tool into an interactive money-flow map, so risk analysts close 9 cases a day instead of 3.

View case study

3×work efficiency

Binance fraud detection prototype playing on a monitor, with an analyst and an alert illustration

Mobile · Founding product designerMargin Trade Simple Mode

Cut the path from opening the app to an order from seven steps to four: a simple mode for everyone, with the full pro terminal one switch away.

View case study

+15%trading volume, 3 months after launch

Margin Trade simple mode playing on a large iPhone, with a Bitcoin coin, candlesticks, a 10× leverage tile and a rising arrow around it

Fintech · Founding designerSolayer Pay

Took a crypto Visa card app from 0→1, then rebuilt it around the card in three data-driven iterations.

View case study

+38%card sign-up rate

Live recording of the Solayer Pay prototype on an iPhone, with the Solayer Visa card and a referral notification

AI agent · Designer and builderSolayer AI Pay

A voice agent that finds, orders and pays in one hold, designed and shipped as a working prototype with Claude and Vercel.

View case study

Solayer AI Pay prototype playing on an iPhone, with the frog mascot, a voice request, the AI orb and a Face ID payment

DEX · Founding product designerMargin Trade

Took Solayer’s perp DEX from a template to a live exchange pro traders use: one dense layout, an order form that explains itself, risk set before you commit.

View case study

$1M+daily volume

Screen recording of a BTC trade on Margin Trade: picking a market, setting leverage and confirming the order

Enterprise AI · UX designerMicrosoft Word AI Co-Agent

An AI co-agent in Word that turns user research into product specs PMs can act on.

View case study

+8.3%work efficiency

CoAgent generating assumptions inside Microsoft Word, playing in a window

About Karina

Hi, I’m Karina. I make complex products feel simple.

I started in fintech and now design for AI. With roots in information management, product design and HCI, I think in systems, care about craft and start with people.

Recently, I built an AI email agent

My story

Three continents. Five homes. Thirty countries. Curiosity is my design tool.

I grew up in Taipei in a family of engineers, then studied product design in London and human-computer interaction in California. I have been a founding designer twice and a designer inside 4,000-person companies like Binance and Grab, always with engineers, PMs and the whole cross-functional team in the room. I build for the business and for the person on the other side of the screen. Both have to win.

30+

countries traveled

countries lived in

View my resume