•Installed, configured, and maintained Linux and AIX operating systems on IBM Power Systems hardware.•Conducted patch management, system upgrades, and applied security updates for vulnerability mitigation.•Oversee the operation of deployed infrastructure.•Managed virtualization platforms such as VMware for resource optimization and scalability.•Hands-on experience with SAN storages and switches (Dell Unity, IBM Storage v5000, FS9000).•Establish and customize LUNs on storage devices, ensuring seamless integration with hosts, while also optimizing connectivity through the configuration of zoning on SAN switches.•Manage Virtual I/O Servers to efficiently allocate and manage physical resources across multiple virtual machines.•Set up and manage Logical Partitions (LPARs) using the Power VM hypervisor, allocating resources as needed.•Plan and optimize Virtual I/O configurations to ensure efficient use of storage, networking, and processing resources.• Configure and manage virtualized storage and network resources using VIO Servers.•Executed AIX / Linux version upgrades as necessary.•Implemented and enforced security policies, including access controls, file permissions, and IPsec.•Conducted security audits and vulnerability assessments.•Monitored system performance using tools like Linux/AIX Performance Tools (nmon, topas) and IBM Health Center.•Set up and managed high availability solutions like IBM Power HA (formerly HACMP), Application HA Proxy for system uptime and failover capabilities.•Wrote and maintained scripts (Shell, etc.) for task automation and administrative processes.•Configured and managed system logs to track system events, errors, and user activities.•Developed and tested disaster recovery plans for data integrity and availability.•Maintained accurate and up-to-date documentation of system configurations, procedures, and policies.•Collaborated with vendors for support and troubleshooting of third-party applications and utilities.

 IBM hardware management HMC, IBM Power 8 and IBM storage management both Primary and DR side. Responsible to manage AIX TL migration task 7.1 TL4 to TL5. AIX / Linux administration to execute smooth bank operations. Support provided on IBM WebSphere and IBM MQ.  Annual DR Drill execution.

⦁ Manage IT system infrastructure of HP & IBM power system series and SAN storage system.⦁ Managing VM technology servers i.e Xen Citrix & VM vsphere. ⦁ Responsible for Servers management and virtual machines management. ⦁ Maintain System level Security.⦁ Install, configure, and maintain Linux/ AIX operating system, Technology level, patches and Service packs.⦁ Deal all admin operational task relate to user creation, volume group and file systems management.⦁ Design and Implement IBM VIO server configuration and LPAR configuration.⦁ AIX upgrade and migration tasks (Version 6.x, Version 7.x.). VIOS backup and its management.⦁ Hands-on and Knowledge on Drbd & GPFS used for clustering environment.⦁ Proactively ensure the highest levels of systems and infrastructure availability.⦁ Day to Day administration and troubleshoot the problems.⦁ Manage basic shell scripts for automate operational tasks.⦁ Hands-on on IBM storage V5000 administration.⦁ Monitoring system and storage utilization and plan future utilization.⦁ Administration HP Data protector backup software for backup management, replication and restoration.⦁ Analyze and troubleshoot backup and recovery performance issues creates operational procedures and documentation.⦁ Coordination with vendors and application team in case of Hardware/Software problems and Hardware/Software up-gradation.⦁ Good knowledge of the ITIL process (Incident/Change/problem management).

⦁ Responsible for all Data center operational activities.⦁ Manage day to day IT system operations / issues. ⦁ Manage and monitor all installed HP & IBM power systems, san switches and storages.⦁ Install, configure, test and maintain operating systems like Linux / AIX, Windows OS, application software and system management tools.⦁ Proactively ensure the highest levels of systems and infrastructure availability.⦁ Monitor and test system performance for potential bottlenecks, identify possible solutions, and work with team to implement those fixes.⦁ Perform backups and restorations using HP Data protector software utility.⦁ Provide 1st and 2nd system level support.⦁ Liaise with vendors and other IT personnel for problem resolution.

• Maintain and manage Meezan Bank’s Production Data Center in Karachi 24/7.• Proactive monitoring of Data Center Facility.• Installation and configuration of Operating systems (i.e Unix/Linux and Windows).• Installation and configuration of Virtualized environment (i.e XEN Citrix).• Monitor the systems to achieve optimum level of performance. Real time system health check of servers resources i.e. utilization of Network, Memory, CPU and Disk I/O.• Troubleshoot and maintenance of servers and other IT equipments using monitoring tool and provide 1st level support.• Planning, designing, documenting and implementation of systems at LR premises that include desktop PC’s, and network equipment etc.• Reporting system & network operational status by gathering, prioritizing information; managing projects.• Manage operational activities for user password, right and policies using Active Directory.• Ensure daily server backups, data restorations and tracking of tape rotation.• Rigorously create and maintain documentation for all processes and procedures • Maintain logs of system health check, Data center & NOC access.

• Installation and Configuration of Microsoft Operating systems and Cisco switches.• Provide connectivity & Troubleshooting of all Operating system and network related devices.• Manage and Configure Active Directory server for centralized domain management.• Maintain ISA Server to manage firewall & Internet connectivity.• Manage user profile and quota on Exchange Server.• Manage and Configure DHCP Server for providing Internet access to guest user.• Configuration of Oracle 6i for hotel management program (OPMS).• Installation & Maintenance of CCTV cameras, Dom Cameras Including Digital Video Recorders.• Responsible to meet guidelines for carrying daily maintenance tasks.• Preparing technical project related documentation and presenting progress reports against plan.• Establish network environment by designing system configuration, directing system, Installation, defining, documenting and enforcing system standards