y4ss3r
cyber-sec engineer
... /About me ...

Hello! I'm Yasser, a cyber security engineer focused on offensive security. Hands-on in web & mobile apps, network pentesting, Active Directory attacks and exploit development.

Active member of the Shellmates community — CTFs, digital forensics and collaborative research. A background in Flutter development gives me a builder's view of secure software architecture.

Arabic — nativeEnglish — intermediateBatna, Algeria
[ portrait · b&w ]
Penetration TestingWeb App / Mobile (iOS & Android) / Network / Exploit Dev / Privilege Escalation / Active Directory
Security ToolsBurp Suite / Nmap / SQLMap / Gobuster / Metasploit / Wireshark / Nikto / Hydra
MethodologiesOWASP Top 10 / PTES / OSINT / Digital Forensics / Cryptography
PlatformsHack The Box / TryHackMe / CTF Competitions
ProgrammingPython / Dart / Flutter / Bash Scripting
SystemsLinux (Kali, Ubuntu) / Windows Server / Active Directory

Some of my favourite techniques, tools and platforms I work with.

Work

2026 — nowfreelance
AMAN Security SA
Penetration TesterNetwork, mobile and AD assessments; exploiting misconfigurations and delivering client-facing reports with remediation guidance.
2024 — nowcommunity
Shellmates Club
Cyber Security MemberEthical hacking, pentesting and digital-forensics training; CTF competitions as part of a collaborative team.
2026 — nowlabs
Hack The Box & TryHackMe
Pentester — LabsBeginner-to-advanced machines across web exploitation, privilege escalation and post-exploitation.
2023 — nowfreelance
Freelance
Mobile DeveloperScalable Flutter apps for clients and hackathons — strong UI/UX and problem-solving.
Focus
offensive security since 2024
... /Certifications ...

Certs

Hack The BoxFeb 2026
CPTSCertified Penetration Testing Specialist
INESep 2025
eJPTv2Junior Penetration Tester v2
Udemy2024
MCSAWindows Server administration
HarvardFeb 2023
CS50xIntroduction to Computer Science
... /Education ...
2025Penetration Testing — CPTS PathHack The Box Academy
2024Red TeamingRed Nexus Academy
2023Flutter Mobile DevelopmentUdemy
2022High School DiplomaMostafa Ben Boulaid