Yahya Khan

Configured and maintained enterprise switching and WLAN using Cisco Catalyst
(2950/3700/6500/9300/9500), Cisco Nexus (NX-OS), and UniFi (Security Gateway, Switch, APs) with
VLANs, STP, EtherChannel, trunking, and inter-VLAN routing.
Performed WLAN configuration and troubleshooting, ensuring optimal coverage and resolving
connectivity issues for high-density environments.
Administered VMware platforms including ESXi, vCenter, vSphere clusters, NSX, and vSAN, handling VM
lifecycle management, capacity planning, and micro-segmentation.
Configured and troubleshot routing and WAN technologies (OSPF, BGP, EIGRP, ECMP, MPLS) and Cisco
Catalyst SD-WAN, onboarding vEdge routers and improving WAN performance by 15%.
Managed FortiGate NGFWs implementing security policies, NAT, IPS/IDS, VDOMs, clustering, ACLs, and
WLAN security for layered network defense.
Supported and monitored large-scale SD-WAN deployments across 100+ branch routers, integrating on
prem SD-WAN edge appliances at HQ and campus sites with centralized policies.
Orchestrated 24/7 network monitoring using SolarWinds Orion and Azure Monitor, creating custom
dashboard views for bandwidth utilization and device health stats.
Designed and optimized Azure networking including VNets, VNet peering, Virtual WAN, ExpressRoute,
VPN Gateway, Azure Firewall, NSGs, Network Watcher, and DDoS Protection.
Integrated hybrid identity using Microsoft Entra ID (Azure AD), supporting Microsoft 365 services
(Exchange Online, SharePoint, Teams) with secure access synchronization.
Implemented monitoring and automation using SolarWinds, SNMP, Syslog, FortiAnalyzer, Azure Monitor,
Terraform, Ansible, and CI/CD pipelines, supported by clear documentation.