Senior Network Administrator

Role Overview We are seeking a Senior Network Administrator to manage and maintain our on-premise network infrastructure . This role involves hands-on system and network administration, proactive monitoring, security hardening, and rapid incident response. You will work closely with IT, DevOps, and Security teams to ensure the stability, performance, and security of the infrastructure. Key ResponsibilitiesNetwork & Security Configure and manage firewalls (e.g., FortiGate ) Create and maintain firewall policies, NAT rules, and VPN configurations Configure and troubleshoot network switches (Cisco / Huawei / Dell) Manage VLANs, trunk/access ports, and routing Configure and troubleshoot BGP with multicast network flows Troubleshoot network connectivity, latency, packet loss, and routing issues Ensure adherence to security best practices and access controls Operations & Support Provide Tier-2 / Tier-3 support for infrastructure and network incidents Proactively monitor network and system he...