
Hi, I’m Sae-Hee (David)
Product Designer
(UI-focused)
I design interface systems that simplify complex products, combining front-end thinking and AI-assisted workflows to move faster and build smarter.
Interface Systems
Systems Thinking + Front-End Background
AI-Assisted Workflows
At R-LABS, I designed and developed an AI-powered venture platform that reduced research time from 3 days to 10 minutes.

Design Thinking
Designing Clarity in Complex Products
I focus on simplifying complex systems, structuring workflows, and designing products that align user needs with real business outcomes.
Complex Workflows
Structuring multi-step processes into clear, usable flows that support better decisions.
Complex Workflows
Structuring multi-step processes into clear, usable flows that support better decisions.
Complex Workflows
Structuring multi-step processes into clear, usable flows that support better decisions.
Complex Workflows
Structuring multi-step processes into clear, usable flows that support better decisions.
Scalable Systems
Designing reusable components and interface systems that scale with product growth.
Scalable Systems
Designing reusable components and interface systems that scale with product growth.
Scalable Systems
Designing reusable components and interface systems that scale with product growth.
Scalable Systems
Designing reusable components and interface systems that scale with product growth.
AI-Assisted Products
Using AI to accelerate research, prototyping, and iteration.
AI-Assisted Products
Using AI to accelerate research, prototyping, and iteration.
AI-Assisted Products
Using AI to accelerate research, prototyping, and iteration.
AI-Assisted Products
Using AI to accelerate research, prototyping, and iteration.
Strategic Clarity
Turning complex requirements into focused, actionable product experiences.
Strategic Clarity
Turning complex requirements into focused, actionable product experiences.
Strategic Clarity
Turning complex requirements into focused, actionable product experiences.
Strategic Clarity
Turning complex requirements into focused, actionable product experiences.
EXPERTISE
Building and Shipping Scalable Products
Interface Systems
Designing structured UI systems and workflows for complex, data-driven products.
Interface Systems
Designing structured UI systems and workflows for complex, data-driven products.
Interface Systems
Designing structured UI systems and workflows for complex, data-driven products.
Interface Systems
Designing structured UI systems and workflows for complex, data-driven products.
Product Execution
Taking features from concept to delivery, working closely with product, design, and engineering.
Product Execution
Taking features from concept to delivery, working closely with product, design, and engineering.
Product Execution
Taking features from concept to delivery, working closely with product, design, and engineering.
Product Execution
Taking features from concept to delivery, working closely with product, design, and engineering.
AI-Enabled Design
Applying AI tools to speed up prototyping, automate workflows, and improve iteration speed.
AI-Enabled Design
Applying AI tools to speed up prototyping, automate workflows, and improve iteration speed.
AI-Enabled Design
Applying AI tools to speed up prototyping, automate workflows, and improve iteration speed.
AI-Enabled Design
Applying AI tools to speed up prototyping, automate workflows, and improve iteration speed.
Case Studies
Selected projects focused on simplifying complexity, building scalable systems, and integrating AI into real product workflows.





