Impact-Driven IT Systems Administrator
Resume:
Rodney Garner
Smyrna, DE
************@*******.***
Impact-driven IT Systems Administrator and Infrastructure Engineer with 18+ years of experience designing, securing, and optimizing enterprise environments across government, healthcare, education, and private sectors. Proven success leading IT initiatives, reducing security risk through vulnerability remediation, automating administrative tasks with PowerShell, and implementing Microsoft Azure, Intune, Microsoft 365, and Defender solutions that improve operational efficiency, security, and user experience.
CAREER HIGHLIGHTS
Led high-performing IT teams supporting enterprise infrastructure and mission-critical business operations.
Successfully supported Centers for Medicare & Medicaid Services (CMS) environments while maintaining compliance with NIST RMF security standards.
Reduced organizational security risk through enterprise-wide vulnerability remediation and POA&M management.
Implemented Microsoft Defender for Endpoint to strengthen endpoint protection and improve security posture.
Designed and executed cloud migration strategies using Azure and Microsoft Intune.
Improved endpoint compliance by implementing enterprise patch management across Windows and Linux systems.
Automated repetitive administrative tasks using PowerShell, reducing manual effort and improving operational efficiency.
TECHNICAL SKILLS
Languages: Java, PowerShell, Python, Power BI
Network: Power Automate, Cisco IOS – Microsoft O365, Azure Intune, Active Directory and Azure Active Directory, Auto Patch/Intune, O365 Exchange Admin, Network Security (Cloud Admin), Cisco router/switch Admin, SharePoint Administration, Windows Server Administration, DNS, DHCP, Microsoft Defender and Defender policy administration, 0365 Secure Score Administration, Antivirus/EDR, Microsoft O365 Admin, ConnectWise RMM, Microsoft virtual machines, SCCM, SQL Server, VMware, Hyper-V, MacBook Administration and MDM with Intune/Iron Mobile/JAMF
Ticketing systems: Zendesk, Service Now, Heat and various ticket tracking systems.
Security systems: Barracuda, Microsoft Defender, Azure/Intune for Endpoints, NIST RMF
PROFESSIONAL EXPERIENCE
Client Support Engineer
Pennsylvania Higher Education Assistance Agency (PHEAA) 01/2024-Present
Harrisburg, PA
Provide Tier III/IV technical support for enterprise Microsoft 365, Azure, Intune, SCCM, and Amazon Workspaces environments supporting agency-wide operations.
Strengthen enterprise security by identifying and remediating vulnerabilities using Tenable/Nessus while documenting corrective actions through POA&M reporting.
Automate system administration tasks with PowerShell, improving operational efficiency and reducing manual administrative workload.
Deploy and manage Microsoft Intune MDM solutions for Windows, macOS, and iOS devices, improving device compliance and endpoint security.
Administer SQL and DB2 databases while maintaining Amazon Linux servers supporting critical agency applications.
Manage enterprise patching through SCCM and Windows Autopatch to improve system reliability and security compliance.
Systems Administrator III/Lead 05/2022-11/2023
RELI Group Inc LLC, Windsor Mill, MD
Led a five-member infrastructure support team delivering Tier III/IV support for CMS enterprise environments.
Managed enterprise vulnerability remediation across Windows servers and endpoints using ConnectWise and Microsoft security tools.
Implemented Microsoft Defender policies that strengthened endpoint protection and improved security compliance.
Developed and maintained RMF documentation supporting federal cybersecurity compliance initiatives.
Administered Azure Active Directory, Intune, Microsoft 365, Active Directory, and enterprise patch management across hybrid environments.
Collaborated with Information Security teams to reduce organizational risk through POA&M tracking and infrastructure hardening.
VoIP Network Engineer – Contractor 11/2021-02/2022
Thirdpacket Technologies, Woodlawn, MD
Centers for Medicare and Medicaid Services
Delivered Tier III technical support for the Centers for Medicare & Medicaid Services (CMS) collaboration platforms, including Zoom, Webex, and enterprise VoIP infrastructure, ensuring reliable communication services for mission-critical operations.
Administered, configured, and maintained VoIP systems, servers, telecommunications equipment, and supporting infrastructure to maximize system availability and performance.
Diagnosed and resolved complex hardware, software, network, and VoIP issues, minimizing downtime and restoring critical services efficiently.
Performed system upgrades, software deployments, and infrastructure enhancements both remotely and onsite to improve reliability, security, and user experience.
Managed Windows server administration, patch management, and operating system updates to strengthen security, maintain compliance, and ensure optimal system performance.
Deployed, configured, and maintained enterprise operating systems and endpoint devices, supporting standardized, secure, and scalable IT operations.
IT Support/Systems Administrator 11/2020-9/2021
National Association of Counties, Washington, DC
Managed enterprise help desk operations, improving ticket assignment efficiency and user response times.
Implemented Microsoft Autopilot to streamline device deployment and accelerate employee onboarding.
Administered SCCM and enterprise patch management to improve endpoint security and system availability.
Developed standard operating procedures that standardized IT processes and improved team consistency.
IT Support Lead – Contractor 10/2019-11/2020
Thrive Earlier Detection, Baltimore, MD
Implemented Zendesk ticketing platform, improving service desk workflow and incident tracking.
Automated administrative processes with PowerShell to reduce manual support tasks.
Developed IT asset inventory database supporting laboratory information management operations.
Authored IT and laboratory SOPs that standardized operational procedures and improved knowledge transfer.
Led a two-person IT support team while supporting infrastructure modernization initiatives.
Technical Analysis Senior Analyst 2/2019-10/2019
NTT Data Inc for Medstar Medical, Baltimore, MD
Senior technical analyst and team lead for desktop support services at Good Samaritan Hospital IT Department in Baltimore.
Troubleshooting software, programs, and hardware
Built images and re-imaged desktops and laptops.
Troubleshooting of IOS devices and wireless infrastructure.
Team lead of desktop support engineers
Supported end users and desktops.
IT Systems Specialist/Network Administrator 9/2006-12/2018
Montgomery County Public Schools
Managed enterprise infrastructure supporting multiple school campuses, ensuring high system availability and network reliability.
Administered Active Directory, Windows Server, PowerShell automation, and enterprise security policies.
Maintained and secured server infrastructure, network hardware, backups, disaster recovery, and endpoint security across multiple locations.
Automated administrative tasks using PowerShell and Visual Basic, improving operational efficiency.
Education & Certifications
AWS Technical Essentials - Certification 2022
Microsoft Azure: Active Directory 2022
B.S. Computer Science/Software Systems Engineering 2014
Colorado Technical University Colorado Springs, CO
B.S. Computer Science 1992
Kean University Union, NJ
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