Çağın Tanır

MSc ETH EPF CS - Application Security Engineer @SBB

About me

Working at SBB CFF FFS as Application Security Engineer, focusing on Web Application Firewalls.

Education

M.Sc. Cybersecurity

Sep. 2021 ‑ Apr. 2024

ETHZ (Eidgenössische Technische Hochschule Zürich) ‑ EPFL
• Security focused lectures on software, network, and systems. Minor in Data Management Systems.

B.Sc. Computer Science and Engineering

Sep. 2017 ‑ Jul. 2021

EPFL (Ecole polytechnique fédérale de Lausanne)
• Notable Courses: Computer security, Computer networks, Software engineering, System oriented programming, Operating systems

Experience

Application Security Engineer

Aug. 2024 ‑ Pres.

SBB CFF FFS
• Developing and maintaining cloud deployments (Cloudflare, AWS, Azure etc.).
• Advising internal partners on network and security solutions, with a focus on Web Application Firewalls.

Working Student, IoT & Cloud

Oct. 2022 ‑ Sep. 2023

Siemens Smart Infrastructure
• Managed the security of cloud deployments at the Pre‑development Team.
• Developed a Building Automation Tool prototype, involving graph database, backend, REST, and frontend work.
• Experience with AWS, network infrastructure, server and certificate management, containerized deployments.

Research

Master's Thesis

ETHZ

Sep. 2023 ‑ Apr. 2024

Unleashing the Full Amplification Potential of DNSSEC
• Analysis of DNSSEC vulnerabilities interacting with application‑layer DoS attacks.
• Creating a testbed to evaluate the DoS risk of major open source DNS resolvers.

Master Semester Project

ETHZ

Sep. 2022 ‑ Mar. 2023

Using UWB Ranging to Secure Contactless Payments
• Proposal to enhance tokenisation payment protocol with UWB secure ranging to prevent relay attacks.

Bachelor Semester Project

EPFL

Feb. 2021 ‑ Jul. 2021

TestGen API Collection and Extraction
• API extraction of Debian libraries leveraging source files, to be used in TestGen project in HexHive Lab, EPFL.

Projects

Developer/Member

Feb. 2021 ‑ Jun. 2021

Blindly App
• Wrote a fully functional Android app in Kotlin in a team of 6 students for Software Development Project Course at EPFL.

Developer

Feb. 2021 ‑ Pres.

AEDAG Alumni Association Website
• Built and still maintaining the website for Galatasaray High School Alumni Association in Switzerland.

Developer/Member

Sep. 2020 ‑ Dec. 2020

Amy Language Compiler
• Implementing a Scala‑like compiler in Computer Language Processing course at EPFL.

Skills

Programming: Python, C/C++, Java, Scala, Kotlin, HTML, CSS, Typescript, SQL, LaTeX, Version Control Systems
Languages: English & French (Advanced) , German (Upper-Intermediate), Turkish (Native)