Resume
Summary
Alexandros Petridis
CERN, European Organization for Nuclear Research
Aristotle Univeristy of Thessaloniki
Education
Electrical & Computer Engineer
Dec 2016 - Nov 2023
Grade: 7.75
Master of Engineering
Aristotle University of Thessaloniki
Department of Computers & Electronics
Security of research computing infrastructures
8-14 October 2023
Split, Croatia
Thematic CERN School of Computing
Scientific Software for Heterogeneous Architectures
11-17 June 2023
Split, Croatia
Thematic CERN School of Computing
Online Courses
Udemy
Penetration Testing and Ethical Hacking Complete Hands-on
Prepare for the Certified Kubernetes Administrators Certification - CKA
PowerShell: Step-by-step
Mathesis
Web application development with NodeJS
Data science and applied machine learning with Python
Introduction to web development with Flask
Advanced programming in Python
Advanced web development
kodekloud
Udemy Labs - Certified Kubernetes Administrator with Practice Tests
Seminars
CERN
Inverted CERN School of Computing
SOC Hackathon Early 2024
EC-COUNCIL University
AI, ChatGPT, Blockchain, and Digital Currency (CBDC): Current Impact & Trends in 2030
Ethical Hacking for Cloud Security: Best Practices and Tools
Monitoring Threats in All Types of Cloud Environments
Penetration Testing Challenges for Cloud-Based Applications (IaaS, PaaS, SaaS)
Improving ROI with Implementation of DevSecOps
Cybersecurity Skills Essential For Combating Cyber Risks Today
EESTEC LC Thessaloniki
Mobile App Development Workshop
Introduction to machine learning with python
Codecamp Patras
Create a scalable API with Microservices and Kubernetes
Introduction to Game Development: Art & Code
ML.NET: No magic anymore
Aristotle University of Thessaloniki
ECESCON 12
Data Analytics for IoT
Professional Experience
Endpoint Security Engineer
Dec 2023 - Present
Meyrin, CERN
- Managed Endpoint Security: Successfully managed endpoint device security by deploying and operating Antivirus and Endpoint Detection and Response (EDR) solutions for Windows and macOS environments, ensuring robust protection against malware and cyber threats.
- Threat Detection and Incident Response: Utilized EDR tools to monitor and analyze security alerts, detect threats, and respond to incidents. Conducted comprehensive investigations to identify and mitigate security breaches.
- Developed and Maintained EDR Policies: Created, implemented, and regularly updated EDR policies to enhance threat detection and response capabilities, ensuring alignment with organizational security standards.
- Maintained EDR Infrastructure: Managed and maintained the EDR infrastructure, including Windows Servers and MSSQL databases, ensuring high availability, optimal performance, and security compliance.
- Proactive Threat Hunting: Conducted proactive threat hunting using EDR solutions to identify potential threats, vulnerabilities, and indicators of compromise (IOCs) before exploitation, enhancing overall security posture.
- Part-Time Member of the CERN Security Team: Collaborated with the CERN Security Team to minimize the impact of security incidents on the CERN site through prevention, detection, and response activities using SIEM (Security Information and Event Management) and SOAR (Security Orchestration, Automation, and Response) solutions.
- Security Reviews and Audits: Conducted thorough security reviews and audits for devices requiring firewall openings to ensure compliance with security policies and to minimize potential vulnerabilities.
- Enhanced Security Configurations for Windows Devices: Reviewed, extended, and improved existing security configurations for Windows devices to strengthen defense mechanisms against potential cyber threats.
- Deployed and Managed "Hardened PC" Configurations: Implemented and managed "Hardened PC" configurations in selected areas of the organization to provide enhanced protection for critical systems.
- Conducted Security Audits for Client-Server Protocols and Ciphers: Performed security audits and recommended improvements for client-server protocols and security ciphers to ensure secure data transmission and communications.
- Reviewed Security Guidelines for CERN's Managed Computers: Assessed and refined security guidelines for both centrally and locally managed computers at CERN, ensuring adherence to best practices in cybersecurity.
- Application Packaging and Deployment: Packaged and deployed applications and security configurations using various deployment environments, including Microsoft Intune, MECM and JAMF to enhance both security and productivity.
- Provided 3rd Level Support for Windows, Application Provisioning and Antivirus: Participated in 3rd level support for Windows environments, application provisioning and antivirus support resolving complex technical issues and ensuring smooth operation across the organization.
Web & Software developer / IT support
Oct 2022 - Oct 2023
Meyrin, CERN
- Content management: Web design, website management, Design and modules creation for websites in Drupal 8.
- System administration: Hardware and system management: Windows PCs, Network administration, GNU/Linux administration.
- Web applications: Web application development (e.g in HTML, CSS, JS, H5P) for virtual educational games and other virtual activities around particle and high-energy physics.
- Database Management: Management of database systems on MySQL.
- Script support on Python, C/C++.
- IT technical support
Information Technology Support Engineer
Oct 2018 - Jun 2019
Thessaloniki, IT department of AUTh
- Support for services and infrastructure at the IT Center of the Aristotle University of Thessaloniki.
- Worked as Level 1, 2 and 3 of technical support.
- Development and services support on Information & Communication Technologies for research at AUTh
Information Technology System Engineer
Dec 2018 - Jun 2019
Thessaloniki, School of Rural and Surveying Engineering, AUTh
- Upgrading and expansion of library, computer lab and other infrastructures of the Department of Rural and Surveying Engineering.
- Worked as Level 1 and 2 of technical support
- Development and services support on Information & Communication Technologies for research at RSE
Certificates
Certified Kubernetes Administrator
Cloud Native Computing Foundation
May 2023
Certificate available here
Challenges
ACM AUTh
Days of Coding 2022
May 2022
Projects
In this section, you will find a collection of my projects that span across different domains such as personal, university-related, and work-related projects. Some of these projects are available on my GitHub profile, and I encourage you to explore and learn more about them.
GitHub public repos
- All
- Personal
- University
- Work