Mustafa tati

• Handled end-to-end support for POS (Point of Sale) systems, ensuring smooth operations and issue resolution.
• Performed server hardware upgrades/downgrades (Dell EMC, HPE, Lenovo) including CPU, RAM, and storage components.
• Upgraded and downgraded Windows Server and Linux OS ensuring compatibility with existing applications and services.
• Applied and managed firmware and BIOS updates for optimal system performance.
• Executed VMware and Hyper-V host and virtual machine upgrades/downgrades with minimal downtime.
• Conducted data backup and integrity verification before system changes.
• Implemented RAID configurations and optimized server storage performance.
• Coordinated with application, network, and storage teams to ensure smooth transitions.
• Performed post-upgrade/downgrade testing to validate system performance and stability.
• Maintained documentation of changes, configurations, and procedures in line with ITIL best practices.
• Worked during off-hours maintenance windows to avoid service disruptions.

Pegasus International Computer Co. Kuwait | Dec’17- Nov’19 | IT Administrator
Responsibilities:
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Maintained Cyberoam Firewall, Cisco Router, Switches
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Sustained Panasonic IP Phones and Call Manager
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Worked on devices such as POS, Camera, MSR reader, Finger print machine, and so on
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Executed daily backups on Data Tapes through Symantec Backup
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Managed Domain Server, Exchange Server, MS Dynamic GP Server, Kaspersky Antivirus Server, File Server
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Designed network security for the firewall as per organizational requirements

CCNA Cisco certified network association

MCITP

CDCP