Ahmet Eren Demir

Senior Cybersecurity Engineer | Penetration Testing

Greater Istanbul

About

Senior Cybersecurity & Penetration Testing I am a cybersecurity engineer with more than 5 years of experience specializing in web application, API, and mobile penetration testing, with a strong focus on AWS cloud security. I am proficient in tools like Burp Suite, Acunetix, Nessus, Postman (with Newman), Nmap, and various OSINT utilities. I hold the eWAPTxv2 certification and have completed training in CEH, OSCP, and Pentest+. I have successfully contributed to security projects for global enterprises such as Fizz, Dhiraagu, and Videotron, as well as leading Turkish organizations. Currently, I am working on penetration testing for connected vehicle systems, ensuring the security of critical electronic components. Driven by a passion for cybersecurity, I continuously stay ahead of emerging threats and am currently exploring AI-driven approaches to enhance security testing for modern applications. ----------------------- https://tryhackme.com/p/Demirren https://github.com/Demirren https://partner.cloudskillsboost.google/public_profiles/e7ca2bef-dccc-4936-b8fa-0706d0751b06

Experience

  • Senior Cyber Security Specialist at Vestel
    May 2023 - Present · 3 yrs 2 mos

    My expertise spans web applications, mobile apps, APIs, IoT devices, and embedded systems in automotive environments. I deliver end-to-end penetration testing services, from planning and reconnaissance to exploitation and reporting, ensuring clients maintain a strong security posture. *Lead the implementation of SAE ISO 21434 requirements for multiple high-profile car companies, including the definition of security goals and design of functional and technical security concepts. *Develop comprehensive Threat Analysis and Risk Assessment (TARA) documents, ensuring the identification and mitigation of potential cybersecurity risks and vulnerabilities. *Performed black-box, grey-box, and white-box penetration tests on WEB applications, RESTful APIs, and Android/iOS mobile application. *Create and execute Cybersecurity Management Plans, overseeing the secure software development lifecycle and ensuring adherence to industry standards and regulations. *Conduct thorough penetration tests on road vehicles, including device hardware review, firmware reverse engineering, secure boot integrity inspection, and vulnerability scanning.

  • Etiya (Full-time · 3 yrs 5 mos)
    • Senior Cyber Security Specialist
      Feb 2022 - May 2023 · 1 yr 4 mos

      Red Teaming Web Application Pentesting REST/SOAP API Pentesting Mobile App Pentesting Network Pentesting AWS Cloud Pentesting

    • Cyber Security Specialist
      Jan 2020 - Feb 2022 · 2 yrs 2 mos

      Red Teaming Web Application Pentesting REST/SOAP API Pentesting Mobile App Pentesting Network Pentesting AWS Cloud Pentesting

  • IT Technician at Doğuş Üniversitesi
    Jan 2017 - Jun 2018 · 1 yr 6 mos

  • Lifeguard at American Pool
    Jun 2017 - Oct 2017 · 5 mos

    Work and Travel

  • Engineering Intern at ORTEM Electronics
    Jun 2016 - Jul 2016 · 2 mos