* Manage and optimize network infrastructure (Layer 2–3), including firewalls, switches, routers, APs, and controllers;
* Lead the end-to-end planning and implementation of new office/data center networks or critical architectural changes;
* Perform advanced configuration and troubleshooting for ACLs, VLANs, subnetting, and firewall best practices;
* Provide management and high-level support for telecommunication providers, DNS, DHCP, corporate Wi-Fi systems, service desk requests, structured cabling, and fiber optics;
* Independently manage large network-related projects such as automation, network refreshes, etc., from start to finish and mentor relevant teams;
* Document network configurations according to standards (rack layouts, port maps, CIDR ranges, VLANs, VPNs, switch configurations, routing tables, etc.);
* Monitor and detect unauthorized changes to network settings;
* Lead the deployment and configuration of new hardware for on-premise networks;
* Plan and execute mass firmware updates for IP phones, PBX, switches, routers, APs, etc.;
* Ensure regular maintenance of configuration and image backups;
* Possess advanced experience in the use and configuration of SD-WAN, VPN, and WAN technologies for multi-office, cloud, and on-premise integrated environments.