Experience & Skills

Work Experience
My professional journey
Learning Timeline
My technical learning path
Technical Skills
My technical expertise
Training Assistant
Corporate Training Solution Vietnam 2025 – Present

Competing in English Business Communication Class

  • Professional Presentations: Delivered persuasive business pitches and project proposals in English, focusing on clarity, tone, and professional body language.
  • Business Correspondence: Mastered the art of crafting formal business documents, including executive summaries, inquiry emails, and formal reports.
  • Collaborative Problem Solving: Engaged in mock negotiations and team-based case study competitions to refine strategic thinking and linguistic agility.
Communication Business English Take care Teaching Problems Solving
CTF Player
Sharkbait CTF Team 2025 – Present

Competing in international CTF competitions:

  • Focused on Web Exploitation and Cryptography categories
  • Collaborated with teammates to tackle complex multi-stage challenges
  • Participated in global competitions including ASISCTF, picoCTF, uotfCTF, and more
  • Wrote detailed writeups for solved challenges to share knowledge with the community
Web Exploitation Cryptography CTF Burp Suite Python Pwntools
Team Leader
Ph0_V@nG_nH0_Hon3y / ka:3aii CTF Team 2025 – Present

Leading a university CTF team at HCMUTE:

  • Coordinating challenge assignments and team strategy during competitions
  • Training and mentoring teammates in Web Exploitation and Crypto techniques
  • Organizing internal practice sessions and challenge writeup reviews
  • Building team culture and driving participation in national/international CTFs
Leadership Web Exploitation Cryptography CTF Mentoring
Member — Gen 2
HCMUTE Information Security Club (HCMUTE-ISC) Jan 2025 – Present

Active member of HCMUTE's Information Security Club:

  • Participated in workshops, seminars, and internal CTF challenges
  • Collaborated with fellow cybersecurity students on security research projects
  • Contributed to club activities promoting information security awareness on campus
Information Security Community Research HCMUTE
Administrator
DucTrong Confession 2023 - Present

Managing DucTrong High School's online community:

  • Managed and developed the school fanpage engaging with the student community
  • Grew community engagement and moderated content effectively
Community Management Social Media

My Cybersecurity Learning Journey

Progression from beginner to CTF competitor, focusing on Web Exploitation & Cryptography.

2023
Foundation
  • Enrolled at HCMUTE — Information Security major
  • Started CTF practice on picoCTF & TryHackMe
  • Learned Linux, networking, and basic scripting
  • Joined HCMUTE ISC Gen 2
Linux Python Networking picoCTF
2024
Web Exploitation
  • Mastered SQL Injection, XSS, SSRF, IDOR
  • Learned LFI/RFI, JWT attacks, Prototype Pollution
  • Started using Burp Suite professionally
  • Joined Sharkbait CTF Team & led Ph0_V@nG team
Burp Suite SQLMap JWT OWASP Top 10
2024
Cryptography
  • Studied RSA, AES (ECB/CBC), and hash functions
  • Learned Padding Oracle, XOR & stream cipher attacks
  • Solved crypto challenges in ASISCTF, uotfCTF
  • Applied math skills — number theory, modular arithmetic
RSA AES SageMath Python
2025
Advanced Research
  • Exploring binary exploitation & reverse engineering
  • Deepening knowledge in WAF bypass techniques
  • Building personal security labs with Docker
  • Writing detailed technical writeups for CTF challenges
Pwn Reverse Engineering Docker GDB/PEDA
Web Exploitation
SQL Injection90%
XSS / CSRF85%
SSRF / IDOR80%
LFI / RFI80%
JWT Attacks78%
Prototype Pollution / WAF Bypass72%
Cryptography
RSA Attacks85%
AES (ECB / CBC / Padding Oracle)80%
Hash Functions & Collisions75%
XOR & Stream Ciphers82%
Number Theory / SageMath70%
Tools & Environments
Burp Suite90%
Wireshark / Nmap78%
GDB / PEDA / pwndbg70%
Docker & Linux80%
SQLMap / Metasploit72%
Programming Languages
Python90%
JavaScript / Node.js75%
Bash / Shell80%
C / C++68%
PHP65%