Irfan Ahmad Khan

Work History

Senior Network Administrator

Abbasi and Company Private Limited

Lahore

01.2021 - Current

Implemented corrective plans of action for network availability and latency
Maintained network performance by performing network monitoring, analysis and performance tuning
Upgraded network by conferring with vendors and developed, tested, evaluated and installed enhancements
Met financial requirements by submitting information for budgets and monitored expenses
Established network specifications and analyzed workflow, access, information and security requirements
Troubleshot network problems and escalated problems to vendor
Identified and immediately resolved issues with network devices
Performed day-to-day LAN and WAN administration, maintenance, and support
Maintained network hardware and software and monitored network to support network availability to end users
Monitored system performance and responded to alerts
Supported project planning team to promptly address hardware and software problems and network emergencies
Assisted IT staff on troubleshooting issues and closing calls 99%
Managed computer operation scheduling, backup, storage and retrieval functions
Maintained applications to keep software current with necessary software updates and upgrades
Consulted with management to determine scope and priorities of projects and to discuss system capacity and equipment acquisitions
Authored documentation for system configuration and troubleshooting
Planned annual budgets to fund IT projects and control spending
Implemented network security measures to minimize data loss
Managed data backups and disaster recovery operations to comply with business continuity initiatives
Recommended development of plans for systems development and operations
Introduced management tools to create and manage virtual server computing environment
Backed up company data to distributed storage centers to avoid massive data loss
Installed, configured and supported local area network (LAN), wide area network (WAN) and Internet system
Verified continuity of computer and telephone system services for users

Network Specialist

Cyber Advance Solutions

Lahore

04.2018 - 12.2020

Installed firewalls and VPNs to increase and manage client network security.
Troubleshot and maintained networking devices and infrastructure across enterprise.
Maintained thorough understanding of local area and wide area networking and components.
Reviewed network settings and made immediate updates, which improved overall security measures
Identified and immediately resolved issues with network devices.
Mitigated risk by analyzing complex computer systems to assess vulnerabilities.
Upgraded and expanded network systems and components.
Defined security requirements for mainframe, workstations and personal computers.
Monitored system logs for all company computers and devices to maximize uptime.
Kept up-to-date on new developments in computer and network vulnerabilities, data hiding and encryption.
Built server systems and installed into racks.
Administered and prepared programs for IP addresses, developed network resources and trained support personnel to provide Tier I support to end users.
Documented all server and network problems and other unusual events in detail.
Reviewed logs for all networking devices for unresolved abnormalities and problems.
Diagnosed system hardware and software problems using advanced root-cause analysis.
Performed code review, code optimization, SQL query optimization and performance improvement for servers.
Upgraded network software and hardware for optimized performance.
Implemented security strategies on private networks at multiple sites across 3-state corporate WAN

Senior Network Consultant

Nets International (Resident Engineer in Cisco)

Dubai

04.2015 - 09.2017

Administered software licensing and purchasing for effective installation of network.
Mitigated risk by analyzing complex computer systems to assess vulnerabilities.
Analyzed data traces using protocol analyzers to identify anomalies and find solutions.
Configured and installed wireless controllers, routers and switches.
Analyzed and defined network requirements, optimization and support for access network projects.
Upgraded and expanded network systems and components.
Implemented and maintained firewalls, series switches and security appliances.
Built server systems and installed into racks.
Upgraded network software and hardware for optimized performance less than 50%.
Served as liaison between user community and software providers.
Monitored system logs for all company computers and devices to maximize uptime.
Communicated with vendors to resolve network outages and periods of reduced performance.
Diagnosed system hardware and software problems using advanced root-cause analysis.

Network Engineer

Lahore Stock Exchange Limited

Lahore

03.2007 - 03.2015

Provided network support services for devices such as hubs, bridges, routers, and other hardware.
Performed troubleshooting for Juniper, Cisco, and packet analysis.
Managed, tracked, and coordinated problem resolution and escalation processes.
Troubleshot complex multi-vendor network service provider issues.
Provided complete end-to-end engineering and installation of route-based IP network solutions.
Established robust infrastructure and data capacity for new applications.
Recommended options for disaster recovery and remote access security.
Applied tier-isolation best practices to support multi-tier architectures.
Assisted with implementation and support of network monitoring tools.
Configure monitored network capacity and performance to diagnose and resolve complex network problems 100%.
Created VPN infrastructure and allowed for secure remote connections.
Detected intrusion attempts and promptly responded to DDoS attacks.
Provided detailed network diagrams and procedural guidelines.
Collaborated with vendors to identify best options for optimizing network performance.
Liaised with stakeholders to keep project goals and deadlines on target.
Integrated fixed wireless connectivity into facilities requiring high-speed networks.
Organized frameworks to transfer secure data from internal to external and public networks.
Escalated emergency technical issues beyond knowledge to maintain optimum up-time.

Summary

Overview

Work History

Senior Network Administrator

Network Specialist

Senior Network Consultant

Network Engineer

Education

Bachelor of Computer Science - Computer Science

Inter in Commerce - Commerce

High School Diploma -

Skills

Certification

Timeline

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