DevOps, Linux Server Administration and Deployment

Professional setup and maintenance of servers based on Ubuntu, Debian or AlmaLinux. Installation and fine-tuning of Nginx configurations (reverse proxy, load balancing, caching, SSL Let's Encrypt), full application containerization via Docker and Docker Compose. Firewall configuration (UFW/iptables), key-based SSH access, fail2ban to protect against brute-force attacks, resource monitoring, automatic cloud backups of databases and CI/CD pipeline setup (GitHub Actions, GitLab CI).