Ibad Ur Rahman

Monitored and maintained enterprise network infrastructure to ensure continuous operation of mission-critical cargo X-ray inspection systems.

• Performed Layer 2 and Layer 3 network troubleshooting across Cisco core, distribution, and access switching infrastructure.
• Investigated network connectivity issues and service disruptions impacting servers, workstations, and inspection systems, facilitating timely resolutions.
• Conducted connectivity testing, packet analysis, and log reviews to isolate network faults and support timely incident resolution.
• Configured and troubleshot VLANs, STP/RSTP, EtherChannel, and IP routing in enterprise network environments.
• Troubleshot network-related issues involving DNS, DHCP, Active Directory, and enterprise firewall connectivity.
• Supported network infrastructure and server connectivity involving Dell PowerEdge servers, VMware ESXi, and Windows Server environments.
• Supported Cisco wireless controllers, wireless access points, Cisco Unified Communications Manager (CUCM), and IP phone connectivity.
• Coordinated with site teams and technical stakeholders to reduce service interruptions and ensure availability of critical systems.
• Escalated complex network and equipment incidents to vendors and OEM technical support teams and followed up until resolution.
• Performed post-troubleshooting connectivity checks to verify service restoration and operational readiness.
• Coordinated with site teams and technical stakeholders to reduce service interruptions and ensure availability of critical systems.

Configured, implemented, and troubleshot Huawei IP networking equipment, including NE9000, NetEngine 8000, NE40E, ME60, ATN, and CloudEngine series.

• Supported IP network implementation, integration, migration, and service assurance activities for the Iraq SDN migration project.
• Configured and troubleshot dynamic routing protocols, including BGP, OSPF, and IS-IS, to maintain network connectivity and routing stability.
• Worked with MPLS, Layer 2/Layer 3 VPNs, VLANs, STP/RSTP, and EtherChannel technologies in IP network environments.
• Investigated network faults, routing issues, and connectivity problems to identify root causes and facilitate timely service restoration.
• Monitored network performance and service availability, identifying degradation to uphold operational stability.
• Supported network configuration, integration testing, and troubleshooting during network deployment and migration activities.
• Coordinated with technical teams and relevant stakeholders to resolve implementation issues and operational incidents.
• Performed network verification and service checks following configuration changes, troubleshooting, and migration activities.
• Performed network verification and service checks following configuration changes, troubleshooting, and migration activities.

• Performed first-level troubleshooting of GPON and IP network connectivity, routing, DNS, DHCP, and customer-premises equipment (CPE).
• Conducted initial fault analysis and root cause investigation to identify network outages and service interruptions.
• Monitored network performance and service availability, identifying faults requiring further technical investigation.
• Logged, classified, prioritised, escalated, and tracked network incidents through resolution using the OTRS ticketing system, enhancing incident management efficiency.
• Coordinated with NOC teams, field engineers, and vendors to resolve connectivity issues and restore services within SLA requirements, minimising downtime and maintaining service quality.
• Supported incident escalation and follow-up for recurring network faults, service degradation, and customer connectivity issues.
• Verified service restoration after troubleshooting and confirmed network connectivity and service functionality.
• Assisted in network health checks and service assurance activities to maintain reliable ISP operations.
• Monitored network availability, device alarms, latency, packet loss, and service degradation using SolarWinds NPM/NCM and Huawei NMS, ensuring optimal network performance.