IT Specialist | IT Administrator | Systems & Network Administrator | Infrastructure Support Engineer. Managing and configuring network devices (Routers, Switches, Firewalls, Access Points). * Designing and implementing LAN/WAN and VLAN networks according to operational requirements. * Monitoring and analyzing network performance and troubleshooting faults using diagnostic and monitoring tools. * Managing Windows Server systems and Active Directory, DNS, and DHCP services. * Managing user accounts, permissions, and security policies. * Implementing backup and restore for systems and data. * Installing and configuring CCTV and NVR/DVR surveillance systems and connecting them to networks. * Implementing Access Control systems, intercoms, and low-current systems. * Preparing and securing network infrastructure and applying basic cybersecurity policies. * Troubleshooting hardware, systems, and networks and performing Root Cause Analysis for critical issues. * Managing Microsoft 365, email services, and enterprise collaboration. * Installing, extending, and testing network and fiber optic cables according to technical standards. * Preparing technical documentation and network diagrams and updating them periodically. * Supporting and deploying systems and applications and ensuring their compatibility with the work environment. * Developing and maintaining websites and managing hosting, domains, and SSL certificates.