TL;DR
- Web Engineer & Security Researcher
- CTF Player
- eess.AS Researcher
Likes
- Listening to music
- Playing the piano (super beginner)
- Sandbox games (Factorio, Minecraft)
- Walking
See more in Music .
Career
N.F. Laboratories Inc.
Long-term internship, security content development
CODE BLUE 2026 student staff
Operations staff for a security conference
Flatt Security Inc.
Summer internship, security engineer
Digital Experts Inc.
Long-term internship, full-stack web and infrastructure engineer for SaaS
tkbctf5 organizer
CTF operations, web challenge authoring
CODE BLUE 2025 student staff
Operations staff for a security conference
Education
University of Tsukuba, Degree Programs in Systems and Information Engineering, Master's Program in Computer Science
Expected enrollment, Multimedia Laboratory
University of Tsukuba, School of Informatics, College of Information Sciences
Transferred in as a third-year student, Multimedia Laboratory
Shinshu University, Faculty of Engineering, Department of Electronic and Information Systems
Information program
Waseda High School
Certifications and Awards
NeurIPS 2025 - Google Code Golf Championship
5th 🥇
MIXI Git Challenge #15
Winner (Foxtrot)
Web Speed Hackathon 2025
Top score (did not pass the regulation)
Information Security Specialist Exam
Passed
Applied Information Technology Engineer Exam
Passed
Fundamental Information Technology Engineer Exam
Passed
CTF
DEF CON CTF Qualifiers 2026
The Seoul Sauna Shogunate / 7th
From Dusk Till Dawn 2026 CTF Quals
TPC / 2nd 🥈
Break The Syntax CTF 2026
The Seoul Sauna Shogunate / 3rd 🥉
Dreamhack Invitational 2026
Individual / 8th
SECCON CTF 14 Domestic Finals
TPC2 / 8th
Ministry of Defense Cyber Contest 2026
Individual / 12th (2nd among individual students 🥈)
Dreamhack Invitational Quals 2026
Individual / 4th
TSG CTF 2025
TPC2 / 24th (13th in Japan)
SECCON CTF 14 Quals
TPC2 / 37th (8th in Japan)
sknbCTF 2025
TPC / 2nd 🥈
Core NetWars Tournament 11 - NRI Tokyo 2025
Individual / 2nd 🥈
FFRI × NFLabs. Cybersecurity Challenge 2025
Individual / 2nd overall 🥈, 1st in web 🥇
SECCON Beginners CTF 2025
TPC / 1st 🥇
IERAE CTF 2025
TPC / 1st 🥇