David Ar is a Linux System Administrator with extensive experience in technical support, server management, and security in UNIX and Linux environments. They began their career in customer service at SYKES before progressing to roles at HP, HPE, and DXC Technology, where they developed expertise in client interactions and system troubleshooting. Currently, David works at Citi as a Sysadmin Linux L3, focusing on patching, troubleshooting, and network management. David continues to enhance their technical skills through various educational programs in computer science, with a focus on AWS and Linux systems.
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