Sensors / Physical computing
Tracking motion with Wii controllers
Personal project
A position-tracking prototype using three accelerometers to estimate rotation.
A working hardware prototypeExplore project
Kyumin Shim / Founder & engineer
Two startups.
Both acquired.
I co-founded Entry Labs and Traw, acquired by Naver and Goodnotes. Then I led AI product development at Goodnotes. I still like building the hard parts myself.
Explore my career01 / Career
Companies & chapters.
Where I’ve built, led, and grown.
- 2014–2018
Co-founder & CTO
Entry Labs
Built the core programming platform and led its adoption in South Korea’s public education system after the acquisition.
Acquired by Naver · 2016Explore the work - 2020–2023
Co-founder & CEO
Traw
Led product development, fundraising, and go-to-market for an AI-driven visual collaboration platform.
Acquired by Goodnotes · 2023Explore the work - 2023–2026
Team Lead · AI Products
Goodnotes
Joined after the acquisition of Traw and led AI product development.
Explore the work - 2026–present
Co-founder & CEO
Stealth
Building a hardware company.
02 / Projects · 2009—2026
Things I’ve built.
Products, engineering, and experiments.
The work behind the roles.
- 2009
- 2011
Interaction design / iOS
An e-book you could tear
Solo developer
A paper-inspired iPad reading interface, built in five days.
President’s Award · KAIST FDCExplore project
- 2012
Game development
Little Mask
Developer · team of two
A vector-based mobile adventure built with C# and Microsoft XNA.
6th worldwide in Round 2 · Imagine CupExplore project
- 2014–2018
Company / Programming education
Entry Labs
Co-founder & CTO
From building a programming language to bringing it into classrooms across South Korea.
Acquired by Naver · 2016Explore project - During Entry · 2014–2018
Language tooling
From blocks to Python
Core developer · Entry Labs
A bidirectional translator that helps students move from visual blocks to Python.
Explore project - 2017
Computer vision / IoT
Vision-secretary
Personal project
A room that responds to what you’re doing, using Kinect and connected devices.
Explore project
- 2019
Commerce / Admin software
Order & logistics admin software
Software development
Admin software for processing orders and managing shipping across multiple sales channels and logistics platforms.
Explore project - 2020–2023
Company / Visual collaboration
Traw
Co-founder & CEO
A shared canvas, conversation, and meeting notes in one workspace.
Acquired by Goodnotes · 2023Explore project
- 2023–2026
AI products / Meeting tools
AI for meetings at Goodnotes
Team Lead · AI Products
Connecting handwritten notes, recorded conversations, and live summaries.
Explore project - 2026
AI agents / Interfaces
Rect.work
Agent & interface development
A work agent that turns tasks into visual, usable results.
Explore project
03 / Made at home
Off the screen.
Into the room.
Objects for everyday life,
made with my own hands.
01 / Furniture × electronics
An aluminum-frame TV
Recreating the LG Objet TV Collection design with aluminum profiles.
See the build
02 / Furniture × ventilation
A K-BBQ table for home
An IKEA dining table with an integrated grill and ducted downdraft ventilation.
See the build
03 / Woodwork × electronics
A display, framed
An office monitor turned into a wood-framed, wall-mounted display.
See the buildKeep in touch
Let’s talk.
About products, engineering, or something worth building.