Zia Ur Rahman

• Troubleshot LAN/WAN performance issues, including DNS, DHCP, routing, switching, and end-to-end
connectivity failures.
• Installed, configured, and maintained Cisco routers, Layer 2/3 switches, firewalls, servers, and wireless access
points.
• Managed Windows Server environments, including AD DS, DNS, DHCP, File/Print services, and Microsoft 365
administration.
• Administered Active Directory domains, user accounts, security groups, and Group Policy Objects (GPOs).
• Implemented and enforced enterprise security policies, endpoint protection, and access-control standards.
• Installed and supported CCTV surveillance, IP phones, VoIP systems, and PABX infrastructure.
• Performed firmware upgrades, OS updates, security patching, backup validation, and preventive maintenance.
• Managed structured cabling (Ethernet & fiber), patch panels, terminations, cable testing, and documentation.
• Provided Level 1-3 IT support for desktops, laptops, printers, peripherals, and business applications.
• Diagnosed and resolved hardware/software issues across Windows, macOS, and mobile devices.
• Monitored network performance, analyzed logs, and optimized bandwidth.
• Assisted in configuring firewalls, VPNs (site-to-site & remote access), NAT rules, and network security policies.
• Performed server deployments, virtualization tasks (VMware/Hyper-V), and storage management.
• Managed disaster recovery tasks, including data backups, restoration tests, and business continuity planning.
• Created and maintained technical documentation, network diagrams, and standard operating procedures
(SOPs).
• Collaborated with vendors, ISPs, and service providers to resolve issues and ensure SLA compliance.
• Provided user training, onboarding support, and guidance on IT policies and best practices.

• Managed and resolved critical IT incidents, performing advanced troubleshooting across network, server, and
application layers; created detailed knowledge-base and troubleshooting documentation to reduce repeat
incidents.
• Installed, configured, and maintained servers, routers, switches, wireless access points, CCTV systems, IP
cameras, printers, scanners, and other IT infrastructure components in multi-office environments.
• Administered Windows Server (2019-2025), including Active Directory DS, Group Policy, DNS, DHCP, WSUS, file
and print services, OU structure design, access control, and security hardening.
• Oversaw full Microsoft 365 tenant administration: Exchange Online, SharePoint, Teams, OneDrive, security
policies, compliance settings, conditional access, MFA, and user license optimization.
• Performed regular system backups, data restoration, disaster recovery planning, hardware diagnostics, and
data protection using industry-standard tools and best practices.
• Installed, updated, and activated enterprise software applications; enforced licensing compliance, security
controls, and patch management procedures.
• Managed endpoint protection platforms (ESET, Kaspersky, Bitdefender), performed threat analysis, applied
security policies, monitored alerts, and responded to security incidents.
• Executed structured cabling projects, including rack installation, patch panel setup, cable labeling, cable
management, and fiber and copper link testing.
• Monitored network performance, analyzed logs, identified bottlenecks, and implemented optimization
strategies to improve uptime and throughput.
• Configured and supported VPNs, remote access, RDP services, firewall rules, VLANs, and access control lists to
ensure secure connectivity.
• Managed IT asset inventory, performed lifecycle management, conducted hardware audits, and coordinated
procurement with vendors and suppliers.
• Provided tier 2/3 technical support to end users, resolving escalated issues related to hardware, software,
network connectivity, and business applications.
• Implemented IT security policies, password standards, backup policies, and access control procedures to
ensure compliance with internal and external requirements.
• Conducted preventive maintenance on servers, network devices, CCTV systems, and endpoints to minimize
downtime and extend equipment lifespan.
• Supported onboarding/offboarding processes, provisioning user accounts, configuring devices, and ensuring
proper access levels and security.
• Participated in IT infrastructure upgrades, system migrations, cloud integrations, and project planning to
enhance organizational technology capabilities.
• Configure and install Emerates ID card scanner device.
• Configure and install signature PAD, s.
• Configure and Install TV signage.
• Configured and Install ZKTeco Biometric device.

• Configure, install, and support Cisco routers, switches, firewalls, and wireless access points.
• Configure and install Cisco ASA firewall for secure and reliable communication.
• Configured and maintained network infrastructure to ensure optimal performance and reliability.
• Monitored network traffic to identify and resolve potential issues proactively.
• Collaborated with cross-functional teams to implement network security protocols and policies.
• Conducted regular system audits to ensure compliance with industry standards and best practices.
• Monitored network capacity and performance to diagnose and resolve complex network problems.
• Provided complete end-to-end engineering and installation of route-based IP network solutions.
• Diagnosed network problems involving combination of hardware, software, power and communications
issues.
• Checked rigorous application of information security policies, principles and practices for continuous delivery
of network services.
• Manage printers, Scanners Wireless-accesspoints and other network devices
• Provide performance and compliance reports (Secure Score, Endpoint Analytics).
• Develop incident response plans and maintain documentation.
• Offer technical support and knowledge transfer to internal teams.
• Collaborate with external partners on system updates and security enhancements.

• Assisted in the installation, configuration, and maintenance of Cisco routers, switches, firewalls, and wireless
infrastructure.
• Supported daily network operations, including proactive monitoring, troubleshooting, and incident escalation
to senior engineers.
• Configured and maintained VLANs, LAN/WAN environments, and wireless networks to ensure optimal
performance and security.
• Supported core network services such as DNS, DHCP, NAT, and IP address management (IPAM).
• Installed, configured, and managed IP cameras, printers, scanners, and VoIP phone systems.
• Monitored network performance, bandwidth usage, and availability using network monitoring tools.
• Performed basic network security tasks, including firewall rule updates, access control configuration, and
device hardening.
• Assisted with network documentation, including topology diagrams, configuration records, and standard
operating procedures (SOPs).
• Provided technical support to end users for network connectivity and hardware-related issues.
• Participated in network upgrades, migrations, and maintenance windows with minimal service disruption.
• Conducted routine backups and recovery of network device configurations.
• Assisted in troubleshooting connectivity issues related to routing, switching, wireless, and VoIP services.
• Coordinated with vendors and service providers for troubleshooting and support cases.
• Ensured compliance with organizational IT policies, security standards, and best practices.