Vision & Product Strategy
Bridging research insights with market needs to craft product strategies that resonate with creators and enterprise clients.
~/portfolio
$ whoami
Yongjoon (Ryan) Lee
Technology executive and researcher driving the development of expressive creation tools, cloth simulation engines, and collaborative platforms that empower AI-era teams. Currently heading Chipsketch, an innovative SoC design-assist platform at OPENEDGES Square.
$ stats --overview
12+
Years in Technical Leadership
Full Stage
Startup leadership
2+
Products launched to market
$ cat strengths.md
Realtime Simulation Expertise
Over a decade of experience building cloth simulation engines, toolkits, and integrations for games and digital fashion.
Collaborative Leadership
Leading multidisciplinary teams with empathy, clarity, and a growth mindset to deliver complex, high-impact releases.
$ ls experience --filter all
OPENEDGES Square Inc.
Chief Product Officer
Aug 2025 – Present
Seoul, Korea
OPENEDGES Square delivers IPs for AI semiconductors and operates the first web-based IP sales platform for fabless companies and design houses.
- Leading cross-functional teams to deliver IP platform milestones.
leadership#01
CONPAPA Inc.
Chief Technology Officer
Jul 2022 – Aug 2025
Seoul, Korea
CONPAPA builds webtoon-authoring tools and visual communication platforms for creative teams.
- Directed R&D and shipped mobile and web solutions from concept to launch.
- Partnered with leadership to define business strategies and deliver measurable growth.
- Launched Reat - a collaborative visual communication platform.
- Built TOONDA (closed) - a storyboard generation tool for visual storytelling.Deprecated
leadership#02
CLO Virtual Fashion Inc.
Chief Technology Officer
Jan 2018 – Jun 2022
Seoul, Korea
CLO Virtual Fashion develops MarvelousDesigner, a leading 3D cloth modeling solution used across CG and VFX.
- Led global R&D and product engineering, delivering flagship product releases.
- Partnered with enterprise clients including Linden Lab, Epic Games, and NVIDIA.
- Championed a collaborative, high-performance engineering culture.
- Spoke at NDC, Chung-Ang University, and NCSoft on simulation and 3D workflows.
leadership#03
CLO Virtual Fashion Inc.
Lead Developer
Jun 2012 – Dec 2017
Seoul, Korea
Led R&D for CLO3D, a premier 3D CAD solution for fashion design and manufacturing.
- Implemented core CLO3D features adopted by major fashion houses.
- Collaborated with customers such as Nike and Adidas to solve production challenges.
- Researched and integrated emerging cloth simulation technologies into production.
technical#04
$ cat highlighted-projects.log
Development of 3D-based AI and collaboration technology to enhance efficiency in the webtoon creation process — TIPS
Apr 2023 – Mar 2025- Built a text-to-motion model that generates character poses without manual keyframing.
- Automated cloth fitting for generated poses, cutting repetitive simulation work.
- Delivered automated line-art extraction to preserve quality while reducing artist workload.
- Implemented cross-platform real-time collaboration with version control and conflict resolution.
- Oversaw the entire project lifecycle.
Integration of MarvelousDesigner SDK with Unreal Engine — Epic Games collaboration
Jun 2020 – Jun 2022- Led end-to-end SDK integration powering cloth authoring workflows inside Unreal Engine.
- Delivered a production-ready cloth simulation toolkit for game developers.
Cloth simulation for Sansar — Linden Lab collaboration
Mar 2015 – Dec 2017- Integrated real-time full cloth simulation within the Sansar social VR platform.
- Launched the first fashion marketplace for user-created avatar apparel.
Multi-resolution cloth simulation with static objects — ETRI commissioned project
Jul 2007 – Dec 2007- Engineered adaptive mesh techniques to accelerate cloth simulation by 30 FPS on 6,400 vertices.
- Delivered a complete end-to-end solution for Korea’s leading government-funded research institute.
$ cat skills.json
Programming Languages
- C++ (expert)
- React.js (expert)
- Python (intermediate)
- React Native (intermediate)
- Java (intermediate)
- Flutter (intermediate)
Platforms & Services
- Qt (expert)
- AWS (expert)
- JPA (intermediate)
Game Engines
- Unreal Engine 4 (intermediate)
Research Interests
- Cloth simulation
- Computer graphics
- Computational geometry
Interests
- Development culture
$ cat publications.txt
Computer Graphics Forum
Yongjoon Lee, Sung-Eui Yoon, Seungwoo Oh, Duksu Kim, Sunghee Choi
Oct 2010
Computer & Graphics
Yongjoon Lee, Jaehwan Ma, Sunghee Choi
Nov 2013
Serious Safety Signals and Prediction Features Following COVID-19 mRNA Vaccines Using the Vaccine Adverse Event Reporting System↗
MDPI
Jung Yoon Choi, Yongjoon Lee, Nam Gi Park, Mi Sung Kim, Sandy Jeong Rhie
May 2024
$ cat education.log
Mar 2005 – Sep 2011
Korea Advanced Institute of Science and Technology (KAIST)
Daejeon, Korea
Ph.D. in Computer Science
- Research focus: Computational geometry and physical simulation.
- GPA 3.53 / 4.3.
- Dissertation: Multi-resolution simulation and automated fitting for virtual garments.
Mar 2000 – Feb 2005
Korea Advanced Institute of Science and Technology (KAIST)
Daejeon, Korea
B.S. in Computer Science
- Concentration in computer graphics.
- GPA 3.47 / 4.3.
Mar 1998 – Feb 2000
Seoul Science High School
Seoul, Korea
Diploma
- Admitted through a national math competition.
- Graduated two years early.
$ cat languages.yml
- Korean (native)
- English (fluent)