MARNIX LEIJDER
Information Security Management Student
./about_me
I'm a -year-old technology enthusiast with a strong interest in IT cybersecurity, social engineering and crypto trading. Currently, I am studying Information Security Management at The Hague University of Applied Sciences, where I combine what I learn in class with real-world experience from my part-time IT job.
My approach to security combines technical skills with business knowledge, enabling me to effectively address both technical and business challenges. I perform well both in a team environment and when working independently.
./experience
Junior System Administrator
Schalke IT Network Services
May 2023 - Present
- Windows Server
- Hyper-V
- Active Directory
- Microsoft Exchange
- Office 365
Information Security - Penetration Testing
aXite Security Tools
Feb 2025 - Jul 2025
Internship focused on cybersecurity & pentesting
- Cybersecurity
- Pentesting
- Vulnerability Assessment
- SQL Injection
- Database Security
- Risk Mitigation
- Report Writing
Business Continuity Specialist
DIVD Dutch Institute for Vulnerability Disclosure
Jan 2024 - Feb 2024
Internship focused on Business Continuity Management
Frontend WordPress Developer
Wizzbit
Oct 2021 - Apr 2022
- WordPress
- Avada
- Frontend Development
- HTML/CSS
- PHP
./skill_set
Security & Compliance
- Information Security Management
- GDPR (AVG)
- Risk Management
- Business Continuity Management
- Ethical Hacking (CTF)
Technical
- Java Development
- Network Management
- SQL Databases
- Windows Server
- Active Directory
Web Development
- HTML5 & CSS3
- PHP
- Symfony
- WordPress
- Frontend Development
./education
Bachelor's Degree
Information Security Management
The Hague University of Applied Sciences
2022 - Present
MBO 4
Application Developer
ROC Mondriaan
2019 - 2022