Abdullah Karokhel

● Enterprise Network Architecture: Engineers and maintains high-availability Spine-and-Leaf data center fabrics utilizing Cisco Nexus 9K/3K platforms, executing complex layer-2/3 routing configurations via BGP, OSPF, and vPC topologies. ● Perimeter Security & Edge Management: Administers enterprise-grade Sophos XGS firewall deployments, orchestrating site-to-site/remote IPsec VPN tunnels, IPS/IDS threat mitigation, cryptographic key rotation, and strict access control audits. ● Virtualization & Compute Orchestration: Oversees multi-host VMware vSphere 8 and vCenter environments, driving end-to-end VM provisioning, vMotion migrations, HA/DRS cluster optimization, and lifecycle patch management. ● Storage Area Networks (SAN): Designs and optimizes high-performance Fibre Channel SAN fabrics using Cisco MDS switches, executing NPIV zoning, storage pool allocation, and data replication across Dell PowerVault arrays. ● Physical Infrastructure & Facility Operations: Directs structural data center floor planning, managing high-density cabling standards (OM4 fiber/CAT6A/SFP28) and monitoring critical facility infrastructure (UPS, HVAC, containment zones) to satisfy strict power and thermal SLAs. ● Incident Management & Technical Documentation: Leads proactive system monitoring and incident response via DCIM dashboards, vendor TAC escalation, and comprehensive infrastructure documentation including IPAM, rack elevations, and configuration baselines.

● Designs infrastructure by planning fiber routing, equipment placement, and network layouts. ● Conducts site surveys to assess deployment feasibility and technical requirements. ● Installs and configures all active and passive FTTH network equipment. ● Creates documentation including technical specifications, engineering drawings, and construction plans. ● Coordinates projects by managing schedules and collaborating with vendors and field teams.

● Resolves complex infrastructure issues across BTS, PTP, CPE, and switches via advanced support. ● Optimizes network health through firmware/IOS upgrades and remote LAN/WAN troubleshooting. ● Coordinates on-site deployments to quickly resolve critical field issues. ● Maintains data confidentiality while systematically documenting incidents, complaints, and resolutions. ● Manages stakeholder communication regarding outages, maintenance, and shift handovers.

• Provides technical assistance for user queries regarding systems, software, and hardware. • Troubleshoots and diagnoses complex computer network faults and system problems. • Installs and configures hardware components, software packages, and operating systems. • Manages access control by setting up accounts, permissions, and security parameters. • Tracks asset inventory by maintaining software licenses and equipment records.