Danish Qaisar
IP Core Network Engineer
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About
Network Engineer with 3+ years of hands-on experience in Cisco and Huawei switching, and strong expertise in Huawei OLT (GPON/FTTH) management, alongside MikroTik router administration across ISP and enterprise environments. Strong foundation in Layer 2 switching (VLANs, STP, REP/SEP ring redundancy), BRAS/PPPoE operations, and 24x7 network monitoring using Huawei iMasterNCE, SolarWinds, and Libre NMS. Also experienced in IT support tasks including hardware troubleshooting, Windows OS updates, email client configuration, printer/network setup, and remote support via AnyDesk and TeamViewer.
Reliable, detail-oriented, and comfortable working in shift-based NOC environments.
Experience
IP Core Network Engineer at Optix Pakistan Private Limited (2023-11 – Present)
- Serve as primary point of expertise for Huawei OLT management — provisioning, configuration, and troubleshooting — for GPON/FTTH service delivery in a 24x7 shift-based NOC environment.
- Configure and maintain Cisco, Huawei, Nexus, and MT Link switches — VLAN setup, trunking, REP/SEP ring redundancy, and link aggregation — ensuring stable, secure Layer 2 connectivity across the network.
- Plan, deploy, and manage IP networks; monitor Broadband Radius Access Server (BRAS) operations serving citywide reseller and subscriber base.
- Administer MikroTik routers and provide remote technical support to resellers, resolving connectivity, VLAN, and browsing issues.
- Monitor nationwide network infrastructure through Huawei iMasterNCE, SolarWinds, and Libre NMS to maintain uptime and proactively flag faults.
- Provide technical support to Engineering and Commercial teams via calls and emails, resolving network and configuration queries.
- Troubleshoot connectivity issues using ping tests and manage port-allow/email access rules on BRAS.
- Configure PPPoE and IPoE bridge modes on ONT devices to enable customer service provisioning.
- Support daily network administration, VLAN configuration, SMTP troubleshooting, and website-access issue resolution for enterprise clients.
Helpdesk Engineer – Level II at StormFiber Private Limited (2022-10 – 2023-11)
- Delivered on-call and email technical support to GPON/FTTH consumers, resolving Internet, Optical TV, and VoIP faults.
- Used Huawei NMS to monitor and troubleshoot fiber links, identifying and escalating outages before SLA breach.
- Diagnosed and resolved PPPoE authentication issues, high-ping/latency complaints (including gaming-related cases), and email/SMTP client configuration problems for corporate-tier customers.
- Performed port forwarding on ONT/access points to enable customer-requested services and applications.
- Performed hardware troubleshooting, Windows OS updates, DNS flush, and Wi-Fi/access point configuration to resolve customer connectivity issues.
- Configured email clients (Outlook/webmail), installed software and drivers, and resolved application-level issues for customers.
- Set up and troubleshot network printers, shared network drives, and router/modem configurations for home and small-office customers.
- Assisted customers with antivirus, Windows Defender, and basic malware/security issue resolution.
- Provided remote support via AnyDesk and TeamViewer, maintaining high first-call resolution rates.
- Escalated complex network and hardware faults to Level III engineering teams, providing detailed diagnostic notes to speed up resolution.
- Educated customers on router/ONT settings, Wi-Fi optimization, and basic troubleshooting steps to reduce repeat calls.
- Maintained accurate ticket logs and documentation for recurring issues, contributing to faster team-wide troubleshooting.
- Coordinated with field technicians for on-site fiber fault resolution when remote troubleshooting was insufficient.
Education
BE in Telecommunication Engineering – Dawood University of Engineering and Technology, Karachi (2018 – 2022)
Pre-Engineering – Government Delhi College, Karachi (2016 – 2018)
