Hi, I'am Jaeyoung chun, known as jjong22.
I'm an undergraduate student majoring in Computer Science & Engineering at POSTECH.

• Game Progarming & Simulation
• Computer Security & Cryptography
• Pixel Art & Game Aesthetics
• Directing Game/Manga/Anime

• POSTECH, B.S. in CSE (2023.02 - )
• Sema High School (2020.02 - 2023.02)

• Computer Security Lab @ POSTECH - Undergrad Intern (2025.01 - )
• AUTOCRYPT - RED TEAM Internship (2024.06 - 2024.08)

• G-POS, Game dev society in POSTECH (2023.02 ~ )
• PLUS, Postech Laboratory for Unix Security (2024.02 ~ )

• 2025 NDM
• 2025 UNIJAM
• 2024 UNICON
• 2024 NDM

• To The Star (2024.01 - )
• Runepago (2025 UNIJAM)

• Universal scene maker for simulator

• Baekjoon - jason9751
• Dreamhack - jjong22
• CryptoHack - jjong22

• 2025 SSU CTF (MINUS)
• HITCON CTF 2024 (Cold Fusion)
• 2024 POSTECH-KAIST Science War (POSTECH)
• DEF CON 32, Car Hacking village CTF (Autocrypt)

• mail: jjong22.busyless@gmail.com
• discord: jjong_22
• website: https://jjong22.github.io/