Experienced in systems provisioning, maintenance, and deployment, including hardware/software installation, 3-tier architecture, and performance monitoring. Skilled in Linux, Windows Server, Ubuntu, and macOS, with expertise in virtualization (VMware ESXi, Hyper-V, KVM, Docker) and backup solutions (Cobian Reflector). Proficient in network configuration, server administration, and security implementation. Strong programming background in Python, C, C++, Bash, JavaScript, and Java, with database expertise in MySQL, MariaDB, H2, and PostgreSQL. Experienced in document management (MayanEDMS), version control (Git), and web technologies (Django, Nginx, Apache Tomcat, Laravel)