
Sharjeel Khan
Senior IT Infrastructure System and Network Support Engineer
Skills

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Portfolio
Work experience
Assistant IT Manager – Infrastructure & Network
Karachi Club • Full-time
Apr 2014 - Present • 12 yrs 4 mos
Responsible for managing enterprise IT infrastructure, network operations, and end-user support across manufacturing facilities. Design, deploy, and maintain Cisco, HP Aruba, D-Link, and MikroTik networks while ensuring minimal downtime. Key Responsibilities: • Enterprise IT Infrastructure Management • Cisco Catalyst, SG & SF Switch Configuration • MikroTik Router Configuration • VLAN & Layer 3 Routing (SVI) • Windows Administration • Microsoft 365 Administration & Support • Active Directory, DNS & DHCP • VPN Configuration & Troubleshooting • Enterprise Wi-Fi Deployment • Network Monitoring (PRTG) • Remote Technical Support • Hardware & Software Troubleshooting • IT Project Management • Infrastructure Documentation • Disaster Recovery Planning • Zero-Downtime Network Maintenance