whoami
Rayen Manai

Rayen Manai

Software Engineering Elite Graduate Program Student

Working Student Cybersecurity Automation Developer (Red Team) at SIEMENS

Iā€™m a software developer and cybersecurity enthusiast with a strong interest in offensive security and secure software engineering. In my current role at Siemens Red Team, I help develop tools to automate security scanning and information gathering, combining my passion for coding with cybersecurity.

Work Experience

Siemens logo

Working Student - Cybersecurity Automation Developer (Red Team) at Siemens

04/2025 - present
Adesso SE logo

Working Student - Software Developer at adesso SE

01/2024 - 01/2025
  • Fullstack development and testing responsibilities within a Scrum methodology framework
  • Completion of various full stack development trainings: Spring Boot, Angular, Docker
TAP logo

Working Student - IT Administration at TAP SG

06/2023 - 12/2023
  • IT Support: Troubleshooting and providing technical support
  • Deployment of Security Policies
  • M365 Tenant Administration
  • IT Documentation
  • Creating and managing system permissions
  • Monitoring
TUM logo

Assistant Teacher, Technical University of Munich, Discrete Structures

10/2022 - 04/2023
  • Weekly tutorials
  • Homework correction
  • Exam correction

Education

2024 - 2026: Software Engineering - Elite Graduate Program

  • Elite Program from the three universities (TUM, LMU, UniA) geared towards the top 2 percent of students in computer science
  • Focus on Software Engineering, Database Systems and Formal Methods
  • One of the 21 students to get accepted out of more than 1000 applicants

2021 - 2024: B.Sc. Computer Science

  • Technical University of Munich
  • Graduation Grade: 1.5
  • Application Subject: Mathematics

2020 - 2021: German Language Course

  • Leibniz University Hannover, Lower Saxony Preparatory Foundation
  • University Entrance Exam, Grade: 1.1

2016 - 2020: Elite High School in Tunisia with focus on Mathematics

  • Top 10 of the year, Grade: 1.16 (Tunisia)
  • Top of the year in my region (Jendouba)
  • Awarded a Scholarship from the Tunisian Government in cooperation with the DAAD

Bachelor's Thesis

Evaluation of Methods for Enhancing the Integrity of Web Applications

Unlike downloadable mobile apps, which are usually packaged and signed, giving providers control over the usage of their signing key, web applications are served directly to users upon request. This exposes users to potential risks, as malicious actors could serve altered JavaScript code with harmful intent. Existing security policies often overlook scenarios where the main application server is compromised, particularly when an attacker gains control over a system terminating TLS connections, compromising end-to-end integrity between the client and content owner. This thesis aims to evaluate and compare existing solutions for addressing these attack vectors, establish criteria for evaluation, and propose an abstract solution with a practical implementation to demonstrate its effectiveness.

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Skills & Projects

Languages and Frameworks


Database and Infrastructure


Development Tools and Practices


Cybersecurity Trainings

Practical Ethical Hacking Certificate
API Hacking Certificate
Web Hacking Certificate
OSINT Certificate
Linux PrivEsc Certificate
Windows PrivEsc Certificate
External Pentest Playbook Certificate

About me

whoami

Hey! Iā€™m Rayen, a computer science student from Tunisia, currently in my third semester at the Software Engineering elite graduate program. Living in Germany and diving deep into the world of tech has been an exciting journey filled with challenges, learning, and growth.

Why creating this website ?

It all started with a YouTube video by Chuck Keith (NetworkChuck). He said something that really stuck with me: "You could be that person for someone else, and even if you inspire just one person, itā€™s worth it." This website is my way of doing just thatā€”sharing my experiences, habits and insights. Itā€™s also a personal project where Iā€™m putting what Iā€™ve learned into practice. Whether it's coding, study hacks or inspiration, I hope you find something here that resonates with you.

Beyond the Code

Life isn't just about computer screens and algorithms! When I'm not coding, youā€™ll likely find me at the gym working out, traveling to new places, or watching football games. Iā€™m also a fan of League of Legends. I used to play quite a bit when I was younger, but now I just enjoy chilling and watching the competitions. And of course, Iā€™m always down for a good concert.