Jeremiah Yorker
Linux System Administrator | RHCSA | CompTIA Security+ | 2.5 Years IT Operations & Network Infrastructure | U.S. Veteran
- Role
- Information Technology Support Specialist at Knight Transportation
- Location
- Phoenix, AZ, US
- LinkedIn followers
- 500 followers
About Jeremiah Yorker
Red Hat Certified System Administrator (RHCSA) with 2.5+ years of IT experience in help desk operations and network troubleshooting, transitioning into Linux Systems Administration. Strong background supporting enterprise users and resolving network connectivity issues, VLANs, and infrastructure outages, providing a solid foundation for Linux-based environments.Hands-on experience with Red Hat Enterprise Linux (RHEL) through home labs, including system installation, configuration, user and permission management, service management, and troubleshooting via the Linux command line. Comfortable using SSH, system logs, and networking tools (ping, ARP) to diagnose and resolve issues.Brings a strong understanding of networking and security fundamentals, including SonicWall firewalls, access points, modem and router troubleshooting, printer IP configuration, and private network support—CompTIA Security+ certified with knowledge of security best practices and access control.Seeking an entry-level Linux Administrator, Junior Systems Administrator, or Linux Support Engineer role to apply hands-on lab experience, grow production Linux skills, and contribute to reliable, secure system operations.
Experience
Information Technology Support Specialist
Oct 2024 — Present · Phoenix, AZ, US
Respond to requests for technical assistance by phone, email, and/or using a help desk management system- Provide first-line response for users requiring assistance with information technology issues and problems (calls, walk-ins, e-mails, etc.)Administer the Microsoft 365 Admin Center, ensuring seamless user experiences and efficient service delivery-Utilize Azure Active Directory to manage user accounts, including adding users to email groups and shared mailboxes-Create and maintain distribution email groups to facilitate effective communication across teams-Implement Multi-Factor Authentication (MFA) using Duo Mobile to enhance security for users-Review and analyze audit logs to monitor user activity and ensure compliance with security protocols-Troubleshoot and resolve Outlook-related issues to maintain user productivity-Manage on-premises systems to grant access to shared folders and ensure proper permissions-Assign read and share permissions in Azure to facilitate secure access to resources-Manage a ticketing system through ManageEngine to address phone and email inquiries promptly-Assist users with password resets and account unlocks to ensure uninterrupted access to resources-Facilitate printer connectivity for users to enhance operational efficiency-Provide remote desktop support to assist users with technical issues, ensuring quick resolution and minimal downtime.
Education
Stockbridge High School
High School Diploma
2012 — 2016
University of Maryland Global Campus
Associate of Arts - AA, General Studies
2018 — 2019
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