Elias Frehner
Code | Security | Design
Originating as a skilled mechanic, I demonstrated leadership in development and engineering projects involving multiple teams. Currently, I’m channeling my passion for coding and cyber security into a transition towards Software Engineering. I established a strong foundation through the Swiss military’s intensive 40-week cyber program, covering diverse areas such as assembly-based reverse engineering, pentesting, and coding. Beyond work, I am dedicated to continuous skill expansion. I’m presently engaged in contributing to multiple FOSS projects and mastering x86 reverse engineering. Alongside my practical experience, I am pursuing a Bachelor of Science in Computer Science to strengthen my academic background.
Contact MeProfessional Experience
Responsible for securing operational technology (OT) and IT networks, performing vulnerability assessments, and implementing security measures in the energy production environment.
Completed the basic military training (Rekrutenschule) with specialization in cyber operations. Gained hands-on experience in network security, system monitoring, and IT defense procedures.
Managed servers, workstations, and network infrastructure, ensuring high availability and security. Provided support to hospital staff and maintained compliance with IT regulations.
Worked as a skilled polymechanic, performing precision mechanical work, assembly, and maintenance of technical systems in an industrial environment.
My Skills
Angular
95%TypeScript
90%HTML & CSS
90%Tailwind CSS
90%UI/UX (Figma)
70%C#
75%Python
85%Database
80%Server & Network Administration
90%Networking
95%Penetration Testing
75%Reverse Engineering
70%Secure Coding Practices
85%CAD / Technical Drawing
70%Project Management
75%Leadership & Team Management
80%Communication
85%Problem Solving
100%Collaboration & Teamwork
85%Education
2025 - 2029
Bachelor of Science in Cyber Security
FFHS (Switzerland)
Ongoing bachelor's degree program focusing on cyber security, networks, and information systems.
2022 - 2025
Advanced Federal Diploma of Higher Education in Computer Science, specialization in Software Development
gibb Bern (Switzerland)
Practical higher education program with a focus on software engineering, algorithms, databases, and applied informatics.
2017 - 2021
Federal Diploma of Vocational Education and Training (VET) in Polymechanics
BZI (Switzerland)
Apprenticeship combining theoretical education with hands-on training in mechanical engineering and production technology.
2014 - 2017
Lower Secondary School (Sekundarstufe)
Oberstufenzentrum Oberhasli (Switzerland)
General education with a focus on mathematics, sciences, and languages.
2008 - 2014
Primary School
Schule Hausen (Switzerland)
Basic compulsory education.
My Projects
KeyBridge
A client–server platform to securely access applications in untrusted environments.
Plexer
A lightweight web app for retrieving original media files from Plex shares, even when direct downloads are restricted.
Flytics
A social platform and analytics hub for pilots to share flights, track statistics, and connect with peers.
Licenses & Certifications
Tenable OT Security
Indegy Tenable