Resume

Haydar Abessi

Vulnerability Researcher & Software Developer

hayderabbassi5@gmail.com
+216 90 521 709
Ariana, Tunisia
www.hyzr.tech

Professional Summary

Computer science student at the Higher Institute of Computer Science, focused on developing my skills in software development and all related fields. Actively engaged in clubs, notably as GR and technical member of Securinets ISI (2023–2024), and contributor & CTF challenge author at Securinets Tekup. Passionate about cybersecurity, especially vulnerability research and reverse engineering. Also a full-stack developer and occasional open-source contributor. Rigorous, proactive, and a strong team player — looking for a dynamic internship to grow and contribute.

Technical Skills

Programming Languages

C/C++
Python
Assembly
Java
C#
JavaScript
PHP

Security Tools

IDA Pro
Ghidra
GDB
Wireshark
Burp Suite
Binary Ninja
Nmap

Frameworks & Technologies

React
Next.js
Node.js
PostgreSQL
OracleDB
MySQL/MariaDB
Docker
Git
Linux
Flask
.NET

Specializations

Binary Analysis
Exploit Development
Malware Research
Cryptography

Education

Bachelor of Science in Computer Science

Higher Institute of Computer Science, Tunisia

  • Algorithms and Complexity
  • Data Structures
  • Operating Systems
  • Computer Networks
  • Software Testing
  • Database Administration
  • ERP
2023 - 2026

Baccalaureate in Mathematics

Grambalia Technical High School
- Graduated with “Très Bien” (Very Good) distinction

  • Mathematics
  • Physics
  • Computer Science
2019 - 2023

Experiences

CTF Author — Securinets Tekup

  • Binary exploitation author at CTF Kareem
  • Binary exploitation author at the prestigious CyberTek2.0 CTF

Freelance CTF Author — CTFBazaar

  • Designed and developed custom Capture The Flag challenges focused on reverse engineering, binary exploitation, and cryptography
  • Collaborated with platform maintainers to ensure smooth deployment and challenge validation

Notable Achievements

  • Qualified for multiple CTF finals, including Hackfest'8
  • 2nd place at SparkCTF 2025
  • 2nd place at Hack To The Future CTF

Interests

  • Reading
  • Anime
  • Art
  • CTFs
  • Open source