Overview
Work History
Education
Skills
Personal
Timeline
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George Tohannie

Phoenix,AZ

Overview

35
35
years of professional experience

Work History

Senior Systems Administrator

Maricopa County Recorder's Office
11.2021 - Current
  • Improved overall system performance by optimizing hardware and software configurations.
  • Streamlined IT infrastructure management processes for increased efficiency and reduced downtime.
  • Reduced security incidents with proactive monitoring and timely patching of systems.
  • Enhanced team collaboration, implementing centralized version control systems for code repositories.
  • Developed comprehensive backup strategies to ensure data protection during disaster recovery scenarios.
  • Maintained high availability of critical business applications by implementing robust failover solutions.
  • Implemented rigorous system monitoring, enabling rapid identification of potential issues before they escalated into problems.
  • Provided technical leadership, mentoring junior team members in best practices for systems administration tasks.
  • Established standard operating procedures for consistent system maintenance across all environments.
  • Implemented virtualization technologies to maximize resource utilization and reduce physical server footprint in the data center.
  • Troubleshot complex technical issues, providing timely resolution to minimize impact on endusers.
  • Championed knowledge-sharing initiatives among team members through documentation and training sessions, promoting a culture of continuous learning.
  • Resolved issues and escalated problems with knowledgeable support and quality service.
  • Diagnosed and resolved hardware and software issues.
  • Planned and implemented upgrades to system hardware and software.
  • Diagnosed and executed resolution for network and server issues.
  • Maintained flexible schedule and responded to after-hours and weekend emergencies.
  • Implemented, developed and tested installation and update of file servers, print servers and application servers.
  • Led server infrastructure development, quality assurance, staging and production systems.

Systems Administrator

Insight Global
11.2021 - 04.2022
  • Delivered Tier 2 and Tier 3 support for problem identification, diagnosis and issue resolution.
  • Performed software installations and upgrades to UNIX or Windows operating systems.
  • Attended meetings to deliver status reports to key stakeholders.
  • Mentored employees and offered constructive feedback for performance improvement.

Systems Engineer IV

Collabera Inc.
04.2021 - 10.2021
  • Utilized Service Desk to manage incidents and change requests
  • Manager user account in a multi-domain infrastructure
  • Manage Exchange of Office 365 mailboxes across a multi-domain infrastructure
  • Manager multiple server in a large enterprise environment.
  • Supported system users, educating employees on troubleshooting and problem-solving protocols.
  • Checked for accuracy and functionality during implementation of new systems.
  • Analyzed security logs to determine and alleviate network threats.
  • Completed software updates and assessed security patches for optimized computer use.
  • Implemented networking and server changes to meet client budgets and needs.
  • Improved system performance by identifying and resolving technical issues in a timely manner.
  • Implemented IT infrastructure upgrades, ensuring minimal downtime during the transition process.
  • Managed and monitored installed systems for highest level of availability.
  • Provided 2nd and 3rd level technical support and troubleshooting to internal and external clients.

Systems Administrator II

Tuba City Regional Health Care Corporation
04.2010 - 04.2021
  • Maintained a thorough understanding of server administration Windows Server 2008 R2, 2012 R2, 2016 and 2019
  • Troubleshoot, diagnose, and resolves server issues and security appliances
  • Configure and setup servers, storage and security appliances for access to business applications in an enterprise environment; manage the administration of server environment related to ensure availability of remote access and services to authorized users
  • Maintain thorough knowledge of Microsoft Exchange 2010, 2013 and 2016 and Office 365 connectivity via Azure AD
  • Knowledgeable installing and basic configuration of Microsoft SQL 2008/2012/2014/2016/2019
  • VMware administrator and architecture experience using vCenter and vSphere 5.0/5.5/6.0/6.5/6.7
  • Deployed VMware Horizon 2006
  • Experience using Dell/EMC vPlex and XtremIO using Metro Cluster
  • Dell/EMC Avamar to backup Physical computers and Virtual Machine
  • Storage Administrator experience with Dell/EMC vPlex/DataDomain/ Isilon/XtremIO/VNX as well with IBM Storwize
  • Understand high availability needs with our VMware Dell/EMC product line
  • Citrix XenApp and Netscaler administration experience
  • Basic knowledge of RedHat Linux
  • Knowledgeable in deploying Dell/HP/IBM/Lenovo Servers
  • Manage assigned projects and install server components to deliver services in accordance with established objectives; evaluate data processing proposals to assess project feasibility and requirements
  • Consults with vendors and other sources on industry and product direction, functionality, and capabilities
  • Reviews and approves all systems changes/charts and programs prior to implementation
  • Ensure proper change control methodology is used
  • Stayed abreast of advances in technology; remains current on new and changing trends in IT.

Cashier/Receiving Clerk

Bashas’ Dine’ Market Place
04.2008 - 04.2010
  • Responsible for process of Direct Store Delivery (DSD) from vendor and entering invoice into IMS system for payment and processing
  • Worked closely with vendors in bring in products into store to provide the best service to our customers
  • Ensured all procedures and policies are followed.

Technology Integration Specialist

Race Computers Inc.
05.2006 - 12.2008
  • Responsible for computer/network installation and maintenance of client computers throughout the Metro Phoenix area
  • Installed and certified CAT6 cable installations
  • Provided server maintenance program
  • Installed and configured Microsoft Windows Update Server (WSUS) that provided clients with latest Microsoft patch updates
  • Installed and configured remote Backup Servers (RBS), installed RBS client on customer’s mission critical computer to provide backup via the internet to an off-site location.

Information Technology Specialist

Tuba City Unified School District
01.2006 - 04.2006
  • Responsible for providing 1st, 2nd and 3rd level technical support for entire school district employees and students; including LAN/WAN technologies, e-mail, internet/intranet, desktop, laptop, and server servers
  • Trained and provided technical support for users of all levels
  • Researched, tested, installed, and maintained all technology equipment’s
  • Received, resolved, referred, and documented software, hardware, network, and procedural problems
  • Using helpdesk management software to track, escalate and monitor issues relating to Service Level Agreements (SLAs)
  • Designed and deployed numerous computer images for several computer labs, providing custom desktop for student users with Windows XP and Mac OS 10.x
  • Maintained Avaya PBX system in transferring phone ports and numbers.

Systems Analyst I

Navajo Nation TANF Program
06.2001 - 05.2002
  • Oversaw the daily operation and maintenance of the local office computer systems, hardware, and software
  • Assisted with the development of premise wiring guidelines for LAN/WAN using current technology
  • Provided orientation and training to local TANF staff on software and hardware
  • Responsible for data security, including measures which safeguarded access to TANF computer systems files, data elements and buildings
  • Successfully negotiated a computer software/hardware purchase in excess of $500,000.00
  • Installed and configured Microsoft Windows NT, Exchange, and Internet servers for local TANF office.

Office Automation Engineer

Pegasus Solution Inc.
03.1999 - 11.2000
  • Responsible for providing 1st, 2nd and 3rd level technical support for a 1500-employee company located in 21 countries; including LAN/WAN technologies, e-mail, internet, intranet, desktop, laptop, and servers
  • Troubleshot desktop, laptop, printer, and other peripheral problems
  • Trained and provided technical support for users of all levels
  • Developed manuals and references guides for technical issues
  • Researched, tested, installed, and maintained all technology equipment
  • Received, resolved, referred, and documented software, hardware, network, and procedural problems
  • Used helpdesk management software to track escalations and monitor issues related to Service Level Agreements (SLAs)
  • Primary contact for purchase of Capital Assets for Americas’
  • Established Corporate credit lines with numerous vendors in providing technology hardware and software.

Computer Lab Specialist

Northern Arizona University
10.1998 - 02.1999
  • Managed 8 computer labs located in different locations
  • Ensured all labs were properly operated and ensured daily operations to ensure student were provided adequate support they needed.

Material Handler I

Indian Health Service
07.1997 - 09.1998
  • Accepted shipments of hospital related supplies and equipment
  • Tagged and tracked all capitalize equipment
  • Delivered department supplies to different hospital departments as needed
  • Transported excess equipment for proper disposal at appropriate government facility for proper destruction.

Supervisor, Logistics/Operation Support

United States Marine Corps
11.1994 - 05.1997
  • Handled time-sensitive freight, general goods, hazardous materials, and government shipments
  • Acted as a role model and mentor for new trainees engaged in On-The-Job Training (OJT)
  • Reviewed employee performances: outlined expectations, instructed on proper methods, issued warnings, and where necessary recommended proper disciplinary actions
  • Coordinated equipment and materials on several projects simultaneously
  • Analyzed budget, coordinated schedules, and interpreted policies and procedures
  • Increased staff productivity and technical ability through effective training.

Supervisor, Computer Support

United States Marine Corps
02.1992 - 09.1994
  • Knowledgeable in computer software, hardware, and procedures
  • Assisted in the installation, configuration, and management of a local area network
  • Managed Banyan Vines Network
  • Assisted users with logins and passwords
  • Technically responsible for LAN product and support.

Personnel/Operations Clerk

United States Marine Corps
02.1991 - 01.1992

Administrative/Personnel Clerk

United States Marine Corps
02.1989 - 02.1991

Education

Navy College Center
Pensacola, Florida

Northern Arizona University
Flagstaff, Arizona
08.2005

Skills

  • Server Hardware Maintenance
  • ITIL Processes
  • Windows Administration
  • Server Consolidation
  • Backup and Recovery
  • High Availability Solutions
  • Disaster Recovery Planning
  • Email Systems Administration
  • DNS Management
  • Virtualization Technologies
  • Active Directory Management
  • System Automation
  • Technical Troubleshooting
  • Storage Area Networks
  • Group Policy Management
  • Database Management
  • Patch Management
  • Disaster Recovery
  • Startup and Shutdown Management
  • Vendor Relationship Management
  • Application Configuration
  • Performance Monitoring and Optimization
  • Team Collaboration

Personal

United States Marine Corps (1988 – 1997): Honorable Discharge, Navy/Marine Corps Achievement Medals (2) Awards

Timeline

Senior Systems Administrator

Maricopa County Recorder's Office
11.2021 - Current

Systems Administrator

Insight Global
11.2021 - 04.2022

Systems Engineer IV

Collabera Inc.
04.2021 - 10.2021

Systems Administrator II

Tuba City Regional Health Care Corporation
04.2010 - 04.2021

Cashier/Receiving Clerk

Bashas’ Dine’ Market Place
04.2008 - 04.2010

Technology Integration Specialist

Race Computers Inc.
05.2006 - 12.2008

Information Technology Specialist

Tuba City Unified School District
01.2006 - 04.2006

Systems Analyst I

Navajo Nation TANF Program
06.2001 - 05.2002

Office Automation Engineer

Pegasus Solution Inc.
03.1999 - 11.2000

Computer Lab Specialist

Northern Arizona University
10.1998 - 02.1999

Material Handler I

Indian Health Service
07.1997 - 09.1998

Supervisor, Logistics/Operation Support

United States Marine Corps
11.1994 - 05.1997

Supervisor, Computer Support

United States Marine Corps
02.1992 - 09.1994

Personnel/Operations Clerk

United States Marine Corps
02.1991 - 01.1992

Administrative/Personnel Clerk

United States Marine Corps
02.1989 - 02.1991

Navy College Center

Northern Arizona University

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