Nicolas Fischer

Young Talent - Penetration Tests Developement & Cyber Security

Bulle, Fribourg, Switzerland

About

Recently completed an internship in cybersecurity and currently seeking new opportunities in the field. I am passionate about cybersecurity and actively participate in challenges on RootMe, TryHackMe, Hackropole, and HackTheBox. Additionally, I use LeetCode to enhance my programming skills and improve my code performance. In my free time, I enjoy poker, cryptocurrencies, and sports.

Experience

  • Cyber Security Engineer at Liebherr Machines Bulle S.A.
    Mar 2025 - Present · 1 yr 4 mos

    Penetration testing of embedded ECUs and CAN networks, focused on identifying implementation flaws and software vulnerabilities through crafted UDS exchanges and Python-driven attack scenarios to provoke memory writes, forced resets, firmware flashing and deviations in ECU behavior (including SCR systems). Application-level penetration testing of diagnostic software and hardware/embedded testing against protected debug interfaces (e.g. password-protected JTAG) to validate device hardening. Development and integration of SBOMs into Dependency-Track and CI/CD pipelines to enable component tracing and automated vulnerability monitoring across ECU software and diagnostic tools. Analysis and robustness testing of illicit SCR emulators that simulate false NOx/NH3/urea sensor signals to assess detection capabilities and prevent AdBlue bypassing. Activities performed to support TARA and compliance with upcoming automotive cyber standards (EU 2027), with regular coordination with development teams and cross-functional stakeholders; strong autodidactic approach to tool development and research.

  • Cyber Security Engineer at European Space Agency - ESA
    Apr 2024 - Oct 2024 · 7 mos

    Development and integration of attack scenarios for a Penetration Testing Automation Framework. Conducted in-depth vulnerability analyses within complex environments related to ESA's space missions. Integrated custom tools and automated processes to enhance the security of communications between space mission systems and ground infrastructures, while contributing to the protection of space assets against emerging cyber threats.

  • Cyber Security Consultant at Orange Cyberdefense
    Feb 2023 - Aug 2023 · 7 mos

    Contributed in a cyber security approach to the integration of Okta authentication solutions within medium and small organizations. Established secure authentication policies for applications like Salesforce, Office365, and VPNs by implementing Multi-Factor Authentication (MFA) using OAuth2 and SAMLv2 protocols. Developed scripts to automate identity management and centralized application authentication, with delegation to Active Directory or LDAP. Worked on Microsoft Graph API automation projects to enhance identity and group policy management, building custom KPIs to optimize security operations.

  • Developer at ArianeGroup
    Apr 2022 - Aug 2022 · 5 mos

    Cybersecurity Department: Developed a Python-based framework to automate and visualize the management of nearly 100 ongoing cybersecurity projects. By processing updated Excel sheets, my script classified data into an SQLite database, calculated KPIs, and generated aggregated insights. I also automated the creation of charts and performance graphs to track project progress over time. The system improved operational efficiency by streamlining data synthesis, reducing risks, and optimizing security project monitoring.

  • Software Engineer at Inovev
    Jun 2021 - Aug 2021 · 3 mos

    Contributed to the Computer Science department by integrating HTML, CSS, and JavaScript into the JOOMLA framework. Spearheaded efforts to organize and standardize the website's codebase, introducing modern structures and innovative designs to enhance both functionality and user experience.