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Over the past 7 years, I have built a comprehensive portfolio in system administration, network security, and technology management. I have been responsible for operating system updates, patch management, log analysis, user management, and technical support (L1 and L2). I ensure robust security by staying updated with the latest CVE reports, troubleshooting issues, and optimizing system performance to guarantee 24/7 infrastructure availability. I also develop and maintain tools for Docker administration, firewall management, web administration, and database management.

In parallel with my hands-on experience, I have completed extensive training and earned certifications such as Cisco CCNA, ISC2 SSCP, and LPIC-1. My background includes courses in cybersecurity, ethical hacking, Docker container deployment, and MongoDB, among others. I work with a wide range of technologies, including Linux (Archlinux, Debian, Red Hat/CentOS), Windows, and Cisco IOS/XR, and I manage technical services such as Docker, Varnish, Apache/Nginx, MySQL/MongoDB/PostgreSQL, postfix/dovecot, as well as firewalls (Fortinet, pfSense, iptables) and advanced security measures to protect against DDoS attacks and intrusions.