Sage Lee
Hi, I’m Sage Lee Seung, a multidisciplinary designer and AI-focused professional with a track record of shipping user-centered products across B2B SaaS, design systems, and data-driven AI projects.
About
Hi, I’m Sage Lee Seung, a multidisciplinary designer and AI-focused professional with a track record of shipping user-centered products across B2B SaaS, design systems, and data-driven AI projects. I enjoy turning complex problems into elegant, scalable solutions by blending design thinking with front-end development and hands-on AI evaluation work.
I’ve led onboarding redesigns, built token-based design systems, conducted user research, and trained AI data pipelines for real-world applications in Korea and abroad. I thrive in collaborative environments, value feedback, and am passionate about creating delightful experiences that empower teams and users.
- 4 years' experience
- Joined June 2026
Industry experience
- Software & Internet
- Computers & Electronics
- Media & Entertainment
- Education
- Professional Services
Work experience· 6 roles
Remote designing token-based components (3+) and guidelines for an open-source library optimized for Korean typography.
Completed 900+ hours of front-end coursework, building and deploying 3 full-stack web apps with React and TypeScript.
Authored and refined 6,000+ Korean-language conversational turns through a full-cycle LLM evaluation process, building 'golden set' training data that scored 4.5/5.0 on quality control.
Education
Certifications and awards
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