Doyun Lee

I measure things I don’t know the answer to, and build things to find out. Currently a senior at Rancho Bernardo High School in San Diego, headed for economics.

Work

Independent research · June 2025

In San Diego, the electric car is cleaner than the bus.

Four Rancho Bernardo routes measured door to door for cost, time and carbon, plus a 16-person survey on why people drive anyway. The transit trip to school is 46 minutes — 42 of them on foot.

Read the study →

Independent project · December 2025

An obstacle course that only opens if you can do the calculus.

Genesis Bloom is a Roblox game built solo across 25 stages, where answering a curriculum-aligned AP Calculus question is what unlocks the next one. Every system is mine: the Lua for checkpoints, multiplayer and saved progress, the interface, the map, and the effects work throughout.

Play it on Roblox →

Background

2026Research intern, Cincy Carbon
Through Ladder Internships, on sustainable aviation fuel and carbon-to-fuel pathways.
Aug 2025 to presentVice president, RBHS Taekwondo Club
Co-leads biweekly meetings on taekwondo culture and history, and coordinates monthly joint practices with clubs from other schools.
Jun 2025 to presentReferee, Federal Taekwondo Association
Officiates regional matches. Received the association’s Volunteer Appreciation Award for the 2026 San Diego Open.
Apr 2022 to presentSpecial needs assistant, Elite Taekwondo Academy
Works with children with autism and ADHD in both inclusive and regular classes, adapting how a lesson is taught to how a given student learns.
Sep 2024 to May 2026Assistant teacher, San Diego Korean School
Supports lessons and younger students. Received the school’s Student Leadership Award.
Jul 2025United States delegate, Overseas Koreans Agency
Selected for a fully funded programme in Korea, in leadership forums and cultural exchange with more than 200 peers from around the world.
2017 to presentTaekwondo, 3rd Dan
Gold at the AAU Region 13 Championship and silver at the AAU National Championships in Olympic-style sparring. Training toward Kukkiwon 4th Dan.
2023 to presentRoyal Regiment and Symphonic Band
Marching band in SCSBOA Division 6A, the highest competitive division, and second chair clarinet. Performed at Carnegie Hall in April 2026.

Awards