Hi, my name is

Jeremy Yu

a.k.a. jt314

Mountain View, CA

Ethical hacker, developer, and student envisioning a better future.

View projects Get in touch

$ whoami

CybersecurityInternationally ranked in competitions
Software DevelopmentConstantly working on new projects
Logic PuzzlesSolving logic and math puzzles for fun
MathLearning and applying advanced concepts

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Selected work

I love building automation, utilities, and games for fun and learning.

All projects

ClipVault

A self-hosted system that uploads OBS replay-buffer clips from a desktop client to a home server, which processes the video and generates a shareable link that embeds as a playable video in Discord.

clip sharingobs integrationself-hosteddiscord embedstauri

MemoryBeat

A real-time multiplayer web game where players race to type the title of a 30-second song clip, with speed-based scoring, a global daily challenge, and custom rooms.

multiplayer gamewebsocketsmusicweb gamereact

Tech & tools

These are the tools I use to bring my ideas to life.

Python
Java
Kotlin
C
C++
Rust
JavaScript

TypeScript
Node.js
Kali Linux
Wireshark
Burp Suite
Nmap
Git
Docker

x86 Assembly
x86
Ghidra
pwntools
pwndbg (GDB)
CyberChef
Hashcat
Autopsy
SageMath
Bash

React
Next.js
Tailwind CSS
Tauri
Flask
Android
SQLite
PostgreSQL

NumPy
Jupyter Notebook
OpenCV
Selenium
LangChain
Fabric MC
PaperMC

Timeline

Experience
Certification
Award

Oct 2026
US Cyber Team (Season VI)
AWARD
US Cyber Games
Drafted to the 32-athlete national cybersecurity team from 140+ athletes in the US Cyber Combine.
Oct 2026
Aug 2026
President, Computer Science Club
EXPERIENCE
Mountain View High School
Previously Treasurer (2024-2025) and Vice President (2025-2026).
Aug 2026
Jul 2026
Silver Medal, International Cybersecurity Olympiad
AWARD
ICO 2026 · Yasmine Hammamet, Tunisia
Represented Team USA; top U.S. finisher, 18th place overall.
Jul 2026
2024-2026
Captain, 1st Place NCL Team (×3)
AWARD
National Cyber League Team Games
Led the 1st place team three times among 400+ high school teams. Seasons: Fall 2024, Fall 2025, Spring 2026.
2024-2026
Mar 2026
3rd Place High School, picoCTF 2026
AWARD
CyLab Security Academy (Carnegie Mellon)
3rd of 1,344 high school teams ($1,000 prize); 4th overall of 8,747 teams.
Mar 2026
Jan 2026
Researcher
EXPERIENCE
Aspiring Scholars Directed Research Program (ASDRP)
AI-related research projects while learning the formal scientific lab process.
Jan 2026
Aug 2025
President, Information Security Club
EXPERIENCE
Mountain View High School
Weekly lectures on cybersecurity and organizing CTF teams. Previously PR (2024-2025).
Aug 2025
Aug 2025
Founder & President, Puzzle Club
EXPERIENCE
Mountain View High School
Led a club consisting of 20+ members, doing puzzle-solving together and organizing local puzzle hunt teams.
Aug 2025
Jul 2025
COSMOS Summer Program
EXPERIENCE
UCLA · “Bit by Bit: Mathematics and Technologies of the Information Age”
Learned linear algebra and Fourier analysis; built an audio streaming protocol over radio from scratch.
Jul 2025
Apr 2025
1st Place High School, MITRE eCTF 2025
AWARD
MITRE Embedded Capture the Flag · award ceremony at Tufts University
Designed and attacked secure embedded firmware over ~4 months; 9th overall of 100+ mostly-college teams.
Apr 2025
Apr 2025
1st Place High School, NCL Spring 2025 Individual Game
AWARD
National Cyber League
1st of 1,727 high school competitors.
Apr 2025
Jan 2025
GIAC Foundational Cybersecurity Technologies (GFACT)
CERTIFICATION
GIAC
Received foundation-level cybersecurity certification on first attempt.
Jan 2025
Nov 2024
1st Place, Pacific Hackers Conference CTF
AWARD
Pacific Hackers · Hacker Dojo, Mountain View
1st of 27 teams, competing against industry professionals.
Nov 2024
Aug 2024
Volunteer Tutor
EXPERIENCE
Graham Middle School
Tutoring middle schoolers in multiple subjects twice a week.
Aug 2024
Dec 2023
USACO Silver
AWARD
USA Computing Olympiad
Promoted to Silver on first attempt, in 9th grade.
Dec 2023
Oct 2023
US Cyber Games Pipeline (Season III)
AWARD
US Cyber Games
Selected for the Pipeline team (top 80) after the US Cyber Combine (top 150); Combine again in Seasons IV and VI.
Oct 2023
Oct 2022
First CTF
EXPERIENCE
Hack the Box
Played Hack the Boo 2022 after a family friend recommended it to me, my first Capture the Flag (CTF) competition.
Oct 2022