Thijs Simonian
full-stack developer • maker • student @ stanford
Hey there!
I'm Thijs, a maker and 
Stanford student from 🌁 San Francisco.
I want to learn how the world works behind the scenes.
For fun, I go on long bike rides and build lights tech for parties/concerts.
Now
Co-director of TreeHacks
Previously
LMArena · a16z · Discord · SFMTA
Here are the coolest things I've done:
- 💬 Worked at Discord in high school as the youngest employee.
- 🐛 Earned a $100,000 bug-bounty for discovering a major security vulnerability in REDACTED.
- 🤖 Built Truth or Dare — One of the largest Discord bots used by 1.6 million communities (~16 million people).
- 🎬 Built Video Arena — The largest preference eval for generative video models.
Blog
Here's some writing about cool things I've done!
Join Mailing List
I'll email you when I write a new post.
Projects
Here's a collection of some of my favorite work!
2025
Countdown Timer
2,352-LED matrix display for TreeHacks
2023
SF Backgammon
SF-themed backgammon board.
2023
ParkML
Parking sign reader for driverless cars.
2023
MuniLines Bag
Transit data art tote bag.
2022
Topo-Transit
Map with live SF train positions.
2024
Together Bench
Gravity brings people together.
2023
Matrix Shirt
280-LED light up outfit.
2023
Glowing Tie
Glowing LED tie for prom.
2022
TodoInky
E-ink to-do list.
2022
Skill Icons
Embeddable skill badges for GitHub.
2020
Truth or Dare
A Discord bot in 1.3 million communities.
2018
ChannelBot
A utility Discord bot.