- Role
- AI Product & Experience Executive
- Location
- Seoul, Abu Dhabi, London
- Experience
- 2002 → present
- Status
- ● Building Raymind
Two decades of shipping user-centric products. Apps, platforms, one VR world.
Now building Raymind.AI, an independent AI product studio. Before that: Humain OS, CookieRun VR, Nike, Kakao, Google, Samsung, Volvo and Aramco — across Seoul, London, Dhahran and Riyadh.
Raymind.AI
“Raymind.AI is just me. Ray is how I see things. Mind is what I can't turn off. AI is what finally let me keep up with my own head. Everything here is self-initiated — no clients, no briefs. Just things I wanted to exist.”
memory.wiki↗One URL for your markdown, everywhere — capture AI conversations, edit in WYSIWYG, share with a permanent link. Web, Mac, VS Code, CLI, and MCP.
ddalggak.ai↗AI product-image generator for small business owners — platform-ready shots for Coupang, Instagram, and Naver in under 20 seconds.
screenstyler.ai↗A Mac app that unlocks peak brightness up to 1600 nits — professional HDR controls beyond what Apple gives you out of the box.
pastlife.app↗Mir, an AI seer who reads your soul through tarot — cinematic narratives, painted portraits, and 30-second films of who you used to be.
jolong.ai↗A roast training platform — Duolingo for wit. Analyze content for clichés, pretension, and AI slop, and train your feedback game.
stiqs.aiA macOS note app that feels like real sticky notes — memos, PDFs, images, code, and to-dos on one canvas, connected visually.MORE IDEAS BREWING. ALWAYS. — RAYMIND.AI LLC, WYOMING — 주식회사 레이마인드에이아이, SEOUL
Selected work
09 CASE STUDIES — 2012 → 2024Some of my thoughts on UX
Defining problems
Without properly and accurately defined problems — possibly with measurable indicators — there is very little chance of making a project succeed. The well-defined problem is the north star that carries everyone through the journey together.
Validating ideas
We come up with ideas and hypotheses based on data and research; we cannot give answers, only best solutions. Validating them uncovers blind spots in the most economical way — once a product fails, recovery costs far more.
Setting priorities
Every project is a series of decisions. Some are informed by hard data; many rely on soft factors and experience. Priorities decide where the limited resources actually go.
Human-centred approach
UX should not be led by a person's taste, but by a continuous rendezvous with users. A good product starts with a serious interest in people at every stage of the design process.



