Sahin Yesilirmak

Sahin Yesilirmak

Cybersecurity

Passionate about breaking & building secure systems. Bug Bounty Hunter, CTF Player, and Security Researcher exploring the depths of cybersecurity.

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About Me

Current Focus Live

HSLU

BSc Information & Cyber Security

HSLU — Attack Specialist & Penetration Testing

Security Research

Security Research & CTF

Active researcher finding vulnerabilities and participation in CTF competitions

TELC

TELC C1 German Certification

Actively preparing for TELC C1 language certification

Vulnerability Research

Systems and products I've helped protect through responsible vulnerability disclosure.

DFX.Swiss Sanitas Epiroc CH Media Recorded Future Vendor 6

Engineer Work Experience

Bug Bounty Hunter

Freelance · Self-Employed

2026 – Present

Security Engineer

Swisscom, Switzerland

2024 – 2025

Projects

CTF Platforms

Education & Certifications

Education

Bachelor in Information & Cyber Security

HSLU, Luzern

02.2025 – heute

Schwerpunkt: Attack Specialist & Penetration Testing

ICT Work Integration Program

Powercoders Bootcamp, Bern

03.2023 – 06.2023

Erwarb fundierte Kenntnisse in Web-Sicherheitskonzepten und -methoden

Bachelor of Cinema/TV

Beykent University, Istanbul

09.2012 – 02.2014

Erwarb Kenntnisse in filmischen Techniken, Methoden und Theorien

Currently Pursuing

TELC C1

German Language Certification

75%

Roadmap

CCNA

CPTS

CDSA

OSCP

Completed

Theoriekurs Informatik-Praktikum (TIP)

Lucerne University of Applied Sciences and Arts • Feb 2025

Burp Suite Certified Practitioner

PortSwigger • Sep 2023

CS50cs - Introduction to Cybersecurity

Harvard University • Dec 2023

CS50p - Introduction to Programming with Python

Harvard University • Jan 2022

CS50x - Introduction to Computer Science

Harvard University • Jan 2022

Get In Touch

Let's Connect!

I'm always open to discussing new projects, security research, bug bounty collaboration, or just a friendly chat about cybersecurity.