Education#
Cyber Security B.Sc. 10/2024 – Present
- Focus areas: Network Security, Reactive Security, Usable Security
- Current: Cyber Security Project Group (ongoing team project) and Ethical Hacking course (ongoing)
Abitur – Kreisgymnasium Heinsberg – 06/2024
- Advanced courses: Mathematics and Computer Science
- Oral examination: English
Projects#
Personal Website#
Self-hosted static website: jsonntag.de
- Containerized with Docker and designed for security and scalability with additional services
- nginx as a reverse proxy
- Accessible via Cloudflare Tunnel, without open ports in the home network
C Shell#
Minimalist Unix shell written in C
- Custom memory management and command processing in C
- Launches installed programs via system calls, partly in Assembly
- Supports pipes between multiple commands
Team Projects#
Team-based software development (OOSE practical course)
- Completed three projects of approximately four weeks each in teams of three
- Collaboration using Git, design with UML, and presentation of results
- Integration of C++ with Python and React servers
Skills#
Programming#
C, C++, Python, x86 Assembly, SQL
Systems & Tools#
Linux, Git, Docker, nginx, Cloudflare Tunnel, Wireshark, Nmap, GDB
IT Security#
Network analysis and port scanning, web vulnerabilities (XSS, Path Traversal), privilege escalation, man-in-the-middle attacks, intrusion detection, network protocol security (TLS, DNSSEC), authentication and access control
Activities & Interests#
- Sailing instructor for children aged 7 to 16
- Handball player