Hyunsang Cho

Portfolio of an AI product design leader

Simplify complexity.
Be honest about price.
Decide by numbers.

I design the screens people trust with their money. In London I built digital experiences for Nike, Barclays, BNP Paribas and Volvo. I set up Saudi Aramco's company-wide design system, and built and led the teams behind Kakao's first European subsidiary, the VR business at Devsisters and the experience of Humain One, Saudi Arabia's national AI platform. Today I lead the experience of AI products for the Abu Dhabi Government, and at my own studio, Raymind.AI, I build and run my own AI products and make the calls on live data.

Now
Abu Dhabi DGE, Product Experience Lead
(since August 2026), Founder, Raymind.AI
Before
Humain, Devsisters, Kakao IX Europe,
Saudi Aramco, AKQA, Razorfish
Study
MFA, Goldsmiths
BA, Central Saint Martins

Worked withNikeVolvoBarclaysVirgin AtlanticBNP ParibasSaudi AramcoKakaoDevsistersHumainAbu Dhabi DGE

01What I bring

I have designed, built and run AI products end to end.

  1. 01

    I plan, build, launch and run AI products end to end

    I do not stop at mock-ups. I design AI products, build and launch them myself, and run them. I built Paldo Saju, memory.wiki and Auntie Rabbit myself, and run them with a team of AI agents. I know first-hand what AI does well and where it gets things wrong.

    Case studies
  2. 02

    I have built and led teams of 6 to 25

    At Saudi Aramco I led a 12-person UX team and set up the company-wide design system. I set up Kakao's first European subsidiary with a team of eight, built Devsisters' VR business with a 25-person team across project management, engineering, art and marketing, and built Humain One's experience with a six-person team, all from scratch. I set roles, permissions and decision criteria first, so reviews are decided by shared standards, not by taste.

    Organisations and teams
  3. 03

    Data, not taste, decides the screens where money changes hands

    Even for a single checkout screen, I set the primary metric and guardrails first, then decide through A/B tests. Removing a struck-through list price that had never been charged raised revenue per checkout visitor by 61%. Even a winning experiment has its rollback criteria set in advance.

    Paldo Saju
  4. 04

    I have worked across many countries and industries

    In London I built digital experiences for Nike, Barclays, BNP Paribas and Volvo. In Saudi Arabia and Abu Dhabi I designed AI products for governments and companies. I work in Korean and English, and I design for users from different cultures within one product.

    Earlier work
  5. 05

    I build AI that listens to people's worries

    Beyond productivity, I believe the most important use of AI is the most basic one: conversation that hears people's worries. Paldo Saju, TarotMasters and PastLife each start from a narrow topic (saju, tarot, past lives) to hear those worries precisely. From what they taught me, I opened the next step, Auntie Rabbit, in beta.

    Products
03Earlier work

Work in finance, commerce, sport and entertainment

Nike Run Club ReRun
Nike Run ClubAKQA

ReRun

Turned your fastest mile from your Nike Run Club history into a hyperlapse film, stitched from street photos of the route you actually ran. Launched in 16 countries. UX and UI lead.

Nike Run Club RunTrack
Nike Run ClubAKQA

RunTrack

A web app that makes your own music track from your run data (pace, distance, direction), the weather and the time of day. UX and UI lead.

Volvo Global Webshop
VolvoAKQA

Global Webshop

Volvo's first e-commerce pilot of its own (UK, Netherlands, Norway). Discovery, gap analysis, user journeys, wireframes and design. UX lead.

BNP Paribas Hello Bank! Expert Review
BNP ParibasRazorfish

Hello Bank! Expert Review

Drew design principles from the four brand pillars of the mobile bank Hello Bank!, and used a scoring system to prioritise the journeys and tasks to improve. Four countries, several languages.

Saudi Aramco Company-wide design system
Saudi Aramco

Company-wide design system

A company-wide design system and UX guidelines, applied across several business units. It also covered the digital journey for Saudi women getting their first driving licence.

Kakao IX Europe Kakao Friends in Europe
Kakao IX Europe

Kakao Friends in Europe

Kakao's first European subsidiary. Introduced KakaoTalk and Kakao Friends to Europe, with licensing and retail partners and a Winter Wonderland pop-up.

Devsisters CookieRun VR
Devsisters

CookieRun VR

From the proposal, team building and Meta partnership through to launch on the Meta Quest Store. A prototype in six months.

LondonAKQA

Nike Training Club, Barclays, Virgin Atlantic

Led UX for onboarding and AI recommendations in the Nike apps (NRC, NTC), the Barclays mortgage experience and the Virgin Atlantic booking experience.

04Products

Products running now

Beyond productivity, I believe the most important use of AI is its most basic one: conversation that hears people's worries. Paldo Saju, TarotMasters and PastLife are not fortune-telling apps. They are different ways in, each starting from a narrow topic (saju, tarot, past lives) so it can hear worries in detail and answer precisely. What people worry about most, and which answers help them open up, became data for the next step, Auntie Rabbit.

I also run TarotMasters, PastLife, the game platform dopaplay, IsekaiPlay and Screen Styler Pro. All of them are on raymind.ai.